東北大学機関リポジトリTOUR

(1)

Report of the Biological Survey of Mutsu

Bay_19. Notes on the Recent Foraminifera from

Mutsu Bay.

著者

HADA YOSHINE

journal or

publication title

The Science Reports of the Tohoku Imperial

University, 4th Series(Biology)

volume

6 number

1 page range

45-148

year

1931-03-23

URL

http://hdl.handle.net/10097/00131769

(2)

Report

of the

Biological

S~rvey of Mutsu Bay.

19. Notes

on the Recent Foraminifera

from Mutsu Bay.*

BY

YosHINE HADA.

Marine Biological Station of the Tohoku Imperial Uni\·ersity, Asamushi, Aomori-Ken, Japan.

(With 95 text-figures.)

INTRODUCTIO .

Tlw

present paper deals with the

results of observations on

the

recent

Foraminifera hom Mutsu Bay. The materials

on

which the

examinations

were based, were collected by myself by means

of a

dredge

and

a surface

net tow during

the

months

of

August, 1927

and June, 1928 at

about

thirty

stations, the

depth

of

any

one which

does not

exceed

thirty three fathoms.

The classification

adopted

in

this report

is that arranged

by

J. A.

CusHMAN

in

his excellent work entitled

" Foraminifera. Their

Classifi-cation and

Economic Use"

(1928)

.

I have recognized in

all

one

hundred

distingu

i

shable

forms, the

species and

varieties numberin

g

respectively ninety

four and six.

Of

the

said ninety

four

spec

i

es

and

six varieties, eleven of

the

species

are

regarded

new

to

science.

Those

one

hundred forms represented

in this paper

are contained

in forty

genera

belonging to

seventeen

families.

Here I

wish

to

express

my

sincere

thanks to Professor S.

HATIA

under whose

supervision

the

work was carried out.

In

identification

of some of

the

species

I have recieved

a great

deal

of

help from

Dr.

J.

A. CusHMAN and

Mr. S. HANZAWA, to whom I am

very

grateful and

make a

special

acknowledgement

here.

In publi

shing

the

present

report

I

am

indebted much to Professor

Dr.

S. HA

TAI

and

*Contributions from the Marine Biological Station, Asamushi, Aomori·Ken. No. 62.

(3)

46 Y

. H

ADA

P

ro

f

esso

r

D

r.

S

. H

6zAWA

. F

o

r th

eir k

indn

ess

I

t

h

a

nk th

e

m h

eart

il

y.

T

he

foll

ow

in

g is t

he

list

of t

h

e spec

i

es dea

lt

w

ith

in t

h

e present

pape

r

.

Fa

mil

y

Astrorhizidae

Page.

1. Crithionina pisum GoEs .••••••••...•••.••.•••••••••••••. · • • •• • • • • 50

Fa

mil

y

Saccamminidae

S

ubf

amily PsAMMOSP

H

AE

R

INAE

2. Psammosphaera {usca F. E. ScHULZE ••.••••..•.••....••••...•••••••.• 51

3. Psammosphaera par-va FLINT ... . . . ·• .. • • . • • • . .. • .. • . 52

Sub

fa

mil

y SACCAMM

I

N

I

NAE

4. Proteonina difflugiformis (H. B. BRADY)· •••••••. ·.• ..•.••••••••.. •••• 52

5. Proteonina crassa, n. sp. . . 54

Fa

mil

y

Reopbacidae

Su

b

f

ami

ly

R

EO

PH

ACINAE

6. Reophax scorpiurus MoNTFORT ....••..•..•..••••.•.•••••.•••••••• · ·• 55

7. Reophax piluli[er H. B. BRADY •...•.•.••...••••••••••••••••.•••• 56

8. Reophax curtus CusHMAN •••.••..•.•..•.•.••••••••.•••.•••••••••.•• 57

9. Reophax biloculm·is FLINT ...•...•••.••••••••••• • ....•••••••..• • .. 57

10. Reophax excentricus CusHMAN •.•...•....••• • •• · · •...•••••••••••.. 58

11. Reopha.'t dentalini[onnis H. B. BRADY ...•...•••••••••••.•.•••....•• 59

12. Reophax enormis HADA ••..••.•...•••.••.••. · ••.•. · ••••.. • •.. • • • • • • 60

13. Reophax gracilis (KIAER) . . . • • • • • . • . ••.•••••..••..••••. · • • • • • • • • • • 61

Fa

m

i

l

y

A

mmod

iscidae

Subfam

il

y AM

M

O

DI

SC

INAE

14. Glomospim gordialis (JoNES and PARKER)· •••••• •••• •. •••• • · •• • • • · • • • 62

Fa

m

ily

Lituolidae

S

u

bfa

m

i

l

y

H

APLOP

H

RAG

MII

NAE

15. Haplaphragmoides emaciatum (H. B. BRADY) .•••.••.••••••••.••••••• 63

16.

Haplaphragmoides subglobosum

(

G. 0

.

SARS) •. • ·. • · •• • . . . . • • • • • • • · • •

64

17. Ammobaculites agglutinans (D'ORBIGNY) •••••••••••••••....• · • • •..• • 65

18. Ammobaculites pseudospirale (vVrLLIAMSON) •..••• ·.-•..••••••••••..•• 66

19. Ammobacul-ites cassis (PARKER) .... . . .... . . .... . . ... -.. 67

20. Ammobaculites calcareum (H. B. BRADY) . . . • . . • • • • . . . . • • • • • • . . • . • • • . 68

21. Ammobaculites mnericanus CusH~IAN . • • • • • • • • • • • • . • . . • • • • • • • . . • • • • • • 69

Fami

l

y

T

extulariidae

Sub

f

a

mil

y

T

EX

T

U

L

A

R

IINAE

22. Textularia candeiana D'ORBJGNY .•••••••••••••••••••.••••••••••••••• 70

FO

R

A

.\U

l\

IF

E

R

A OF MU

T

SU BAY

-

17

Page. 2:3. Textularia hauerii D'ORBIGNY • • • • • • . . . • • • . . • • • • . . • • . • • • . . . . . • • . . . • . 71

24. 1' extularia cuneata, n. sp. . . 71

25. Textularia par-vula CusHMAN ...•....•••.••...•••... . . .••..••.... 72

26. Bigenerina nodosaria D'ORiliGNY . . . • ••. . . . .•. • . . . 73

F

amil

y

Verneuilinidae

27. Verneuilina polystropha (REuss) . . . ... • . . . • . .•...••. . . ... 74

F

amil

y

Miliolidae

28. Quinqueloculina seminulum (LINNE) .•.••.•••.. . ...•••••.•...•• 76

29. Quinqueloculina vulgaris D'ORBIGNY • • • • • • • • • • . • • . . • • • . • . • • • • • • • • • • • 76

30. Quinqueloculina pygmaea REuss . • • • • • • • • • • • • • . • • . • • • • • • . . • . • • • • . . . . 77

31. Quinqueloculina subquadra, n. sp ... 78

32. Quinqueloculina lamarckiana D'OnBIGNY •••.••.•.•••••••••••.•.••••• 79 33. Quinqueloculina curta CusHMAN • • • • • • • • . . . • . . • • . . • • • • • • • • • • • • • • • • . • 80

34. Massilina secans (D'ORmGNY) ••.•..•••••••.••...••••.••••••..••••.• 81

35. Spiroloculina depressa D'ORBIGNY •.••.•.•..•.••••.•.•••. . . .•...•. 82

36. Spiroloculina cushmani, n. sp. . . . . ... 83

37. Spiroloculina costata, n. sp. . . . . . . 84

3R. Triloculina t,-igonula (LAMARCK) •..•.•..•... . . . ..•••••..•••••••••• 85

3ll. Triloculina tricarinata D'ORBIGNY •...•.••••••.•.••••••••••• . . . 86

40. Triloculina ci·rcularis BoRNCMANN ••... . . ..•••...•.••.••...•• 87

41. Triloculina te.,-querniana (H. B. BRADY) . . . ...••. . . • . . . .••...• 88

Fa

m

i

l

y

Ophthalmidiidae

S

u

bfa

m

i

l

y C

oR

NUS

P

IR

I

NAE

42. Cornuspira involvens (REUSS) ••••.••....•....••.•..•...•••.••.... 89

Fa

m

i

l

y

Trcchamminidae

S

u

b

fami

ly T

RO

C

H

AMMININAE

43. Trochanunina in/lata (MONTAGU) ..•.... . . • . ...••••... . . . • . . . • .• 90

44. Trochammina globigerini{ormis (PARKER and JoNES) ...•••... . . . . • . . 91

S

ub

f

a

m

ily G

LOT

EXTULAR

IINAE

45. Nouria polymorphinoides HERON· ALLEN and EARLANI) ....••.•.•.•.•.• 93

46. Nouria textulariformis, n. sp. . . . . . .

93

47. Nouria tenuis, n. sp. . ...•... 94

Fa

mil

y

Lagenidae

S

u

b

f

a

mil

y No

D

OSA

RIINAE

48. Dentalina communis D'ORBIGNY . • . . . • . . . • • • • • • . . . . • • . • . . . • . . . . . . . . 95

49. Dentalina consobrina D'ORBIGNY, var. emaciata REuss •.•.••.•...•••.• 96

50. Dentalina mutsui, n. sp. . . 97

51. Nodosaria simplex SILVESTRI. •••.•.•..•••••.•.... • . . . ... . . ..•..• 98

52. Nodosaria pyrula D'ORBJGNY ••.•••••.. . . . ••••••.•••••••••••••••••• 98

(4)

48 Y. HAD

A

Page.

54. Nodosaria scalaris (BATSCH) . • . . . • -. . - .. -- • • .. · · • · · • • · · · • • · · • • · .100

55. Glandulina rotundata REUSS . . . • • ..•.. . . ... . . --· -· ·-·-.100

56. Amphicoryne falx JoNES and PARKER ••..• -.-••...• · · · ·. · ·- · ·- • • • · .101

Subfamily

LAGE

N

I

NAE

57. Lagena laevis (MoNTAGU) • . . . • • . . . . -.••..••.•.•..•••••• • •• • · • • · · · · .102

58. Lagena cl~vata (D'ORBIGNY) ..•.•..•....•..•••.. . • . . · ..••• · -· • · · • • • .103

59. Lagena gracillima (SEGUENZA) ...• . . . • . . .••. -.••.• · · · · · · · • • : .103 60. Lagena elongata (EHRENB~~RG) .•.•.. . .•...••...•.••.• . . • . . . • . . • • .104 61. Lagena semistriata WILLIAMSON .. . . • . . . •... . • . ...• ·. · ·. · · ·. · · • .105

62. Lagena gracilis ''VILLIAMSON •.••.•..••..•••.•. · . . . . · •• · • · · · · · · · · • -106 63. Lagena distoma PARKER and JoNES .•...•.. . . .• · . . . . ·. • ... • • • · · · .106 64. Lagena striata (D'ORBIGNY) . . . . ...• · ...• : .•.. . . . · . · ·• · · · .107 65. Lagena striata (D'ORBIGNY), var. strumosa REUSS · · ..•. · · • · · · · · • • · · · -108

66. Lagena substriata WILLIAMSON .... . . ... . . . ..•... • . . ..•.. · · · .108

67. Lagena sulcata (WALKER and JAcoB) . ... • . . . ... . . •. · . . . · · · .109 68. Lagena sulcata (W ALKE!l and JACOB), var. interrupta WILLIAMSON.· .. · 109

69. Lagena m·bignyana (SEGUF:NZA), var. . ... · . · · · · .110

Family

Polymorphinidae

Subfamily POLYMORPHININAE

70. Guttulina communis D'ORBIGNY . . • • . . . . · · · · .. · · · · . . . · . . · · · · · · · · · · 111

71. Guttulina regina H. B. BRADY, PRAKER and JONF:S .. . . . · ·. ·. · • • · · · • -112

72. Guttulina gibba D'ORBIGNY . . ... . . • . • . . • • . . .. . . . ... · • · · · · •• 112

73. Pseudopolymorphina soldanii (D'ORBIGNY) ... ·. · · · • · · · · · • • · .113

74. Dirnorphina tuberosa (D'ORBIGNY) ••. . . · . . .. · · . . • · .... · · . · · • · • • • • · · · 114

75. Sigmomorpha ozawai, n. sp. . ... · · · ... · . · · · .115

76. Sigmoidella kagaensis CusHMAN and OzAWA ... . . .. · . · . . · . ·• · · ·. · · .. • .116

Family

N

o

nionidae

77. Nonion boueana (D'ORBIGNY) . . . .... . . . .. . ... . . . 117

78. Nonion scapha (FICHTEL and MoLL) ... . ...•..••..•. .•.. . .. . . •• -118 79. Nonion turgida (W!LUAMSON) . • . . . . . • . . . . • . . • • • . ...•... . . • . 119

80. Nonionella pulchella, n. sp. . . . . . . . . . . . .... · ... · .... 120

81. Eliphidimn striato·punctatum. (FICIHEL and MOLL) .. . . . .•... . . . .. · · · • .121

82. Eliphidium crispum (LINNE) . . . . . . . . . . . • . . . . ••••.•. . .•... · · · • -123

83. Eliphidium -subnodosurn (MUNSTER) . . . . .. • . . . •. . .••...••..•.. • . • . 123

84. Eliphidium macellurn (FtCHTEL and MOLL) ...•••..•••.••.. · · · · • · · · · -124

85. Eliphidium fabum (FrcHTEL and MoLL) .. . . • . ...•....••. · · • ...• · • • • · · 125 86. Eliphidium decipiens (CosTA) . . . .. . .•. . . • • ... · · · . · · · · · · · · · 126

Family

Buliminidae

Subfamily BULIMININAE

87. Bulimina aculeata D'ORBIGNY ••. .. ... . .... . ... . . .. . . . ..••... 127 88. Entosolenia globosa (MONTAGU) . . . • . . . . • . . . • • .... 128

89. Entosolenia lucida WILLIAMSON •••...••..•...•..•. . . . .•.... 129

-

.

FORAMINIFERA

O

F

MUTSU

BAY

49 Subfamily VIRGULININAE

Page. 90. Virgulina schreibersiana CzJEK . ... . . ... .. · · · · · ·. · · · • · • .130 91. Bolivina robusta H. B. BRADY . . ... . ..••.. · ..•.•. · • . . . ... ... . . • . . . .. 131 92. Bolivina seminuda CusHMAN. · • · • · · • •. • • • • · · • · · • · · · · • • · · · · • · · · · · • .132

Subfamily

R

EUSSIINAE

93. Reussia spinulosa (REUss) ... · .. • . · · ·. · · •. 133

Subfamily UvrGERININAE

94. Siphogenerina mphanus (PARKER and JO!\'ES) ...••.•..•••... . . -134

Family

Rotaliidae

S

ubfamil

y

RoT

AL

II

NAE

95. Rotalia papillosa H. B. BHADY ... . ... 136

96. Rotalia papillosa H. B. BRADY, var. comp1·essiuscula H. B. BRADY · · · 136

97. Rotalia japonica, n. sp. . ... · .137

Subfamily BAGGININAE

98. Cancris auricula (FICHTEL and MoLL) . . . .. . .. . . ... . . .. · . · · · · . •. 139

Fami

l

y

Globigerinidae

Subfamily GLOBIGERI

NINAE

99. Globigerina bulloides D'ORBIGXY . . . ...•. . . . • . . . • · •• · · · · · • · · · · • • . 140

Family

Anomalinidae

Subfamily

CIBICID

I

NAE

100. Cibicides lobatulus (WALKER and JACOB) .•..•. • . . . . ·• · • · · · ..••.. · . . -141 DESCRIPTION OF THE SPECIES.

Order FORAMINIFERA.

Family

Astrorhizidae.

T

est

free, consisting

o

f

a ce

ntral

cham

b

er

f

ro

m

w

hi

c

h

radiate

t

ubular

channels

t

o the exterior, ei

th

e

r

simple

or

br

anc

hin

g ; wall

with

a

thin

c

hitin

o

u

s

inn

e

r la

yer

on all o

r

part of w

hi

c

h

is agg

lutin

ated

are

na

ceo

u

s

material ; apertures formed by the

p

er

iph

era

l

ends of

the

ar

m

s

or

by

openings in the peripheral

wa

ll.

Genus

CRITHIONINA

GoES, 1894.

T

est free, s

pheri

ca

l

,

l

e

nti

c

ul

ar

or

vario

u

s

l

y s

h

aped,

int

er

i

or eit

h

er

wi

th

a

l

a

r

ge cha

mb

er a

nd

thin wall, usually perforated, or with

a

(5)

50

Y. HADA

sma

ll

chamber

and thick

wa

ll

w

ith

the

commun

ication

to the

surface

by means of numerous bl'anching tubes ; wall of

spo

ng

e spicu

l

es a

nd

very

fine

sa

nd

,

often

ch

a

lky

in appearance,

so

ft,

with

littl

e cement

;

c

olor white

or grayish.

1. Crithionina p1sum

GoEs.

(Text·fig. 1)

Crithionina pisum, GoE:s, 1896, p. 24, pl. 2, figs. 1, 2; FLINT, 1897, p. 266, pl. 6, fig. 1; M!LLE'rr, 1899, P· 250, pl. 4, fig. 3; RHUMBLER, 1904, p. 230,

text·fig. 57; CusHMAN, 1918, p. 68, pl. 25, figs. 4, 5, pl. 26, figs. 1-3.

Description.

-

Test

Text·fig. 1. Crithionina

pisum GoEs. x 20.

usually

globu

la

r, somewhat compressed ; wa

ll

thi

c

k,

subcavernous,

consisting

of

fin

e s

and

gra

ins

a

nd

o

f

sponge spicu

les

agglutinated

loosely,

giving a

chalky appear

a

nce,

wit

hou

t

distinct

apertures ; surface

nearly

s

mooth,

s

lightly uneven

; color greyish

whit

e

.

Diameter,

about

1.50 mm.

Locality.

-

Off Futag

o

jima,

23 fathoms.

R

e

marks.

-

Of this

spec

i

es

only

a s

ingl

e

specimen

wa

s

found in

the

mat

e

rial

taken

from

t

h

e

b

o

ttom of Mutsu Bay,

a

nd

thus

rare

in thi

s

region.

Family

Saccamminidae.

Test

free

o

r attach

e

d,

composed typ

ic

a

ll

y of a single chamber

or

occasionally with chamber

o

f the

same sort

lo

osely united ;

wa

ll lined

wit

h

chitin,

the

exterior of agg

l

utinated

mat

e

rial of

various sorts, sand

grains,

sp

onge

spicules,

or

ot

h

er foramin

if

era

l

test

s

;

aperture

usually

s

ingl

e,

of

various shapes.

Subfamily P

sA

MMOSPHAERI

NAE.

T

est

without

a definit

e

aperture.

G

e

nus

PSAMMOSPHAERA

F. E.

SCHULZE,

1875.

Te

s

t

free

or

attached, g

lobul

ar; wa

ll

c

omposed

of

a thin

la

yer

of

FOHAMI

N

IFERA

OF

~IUTSU

BAY

51 c

hitin

wit

h

an outer

wall

of

sand grains,

mica

Hakes,

sponge sp

i

c

ul

es,

o

r

other

foraminiferal

tests,

firml

y cemented

;

aperture

ind

e

finite.

2 .

Psammosphaera fusca F. E. ScH

U

LZE.

(Text·fig. 2)

Psammosphae•·a (usca, F. E. SCliULZE, 1875, p. 113, pl. 2, figs. Sa-f; H. B. BRADY, 1879, p. 27. pl. 4, fig. 1; 1884, p. 249, pl. JS, fig. 1, 5-8; Go£s, 189-1-,

p. 14, pJ. 3, fig. 19; CHAPMAN, 1895, p. 13; FLINT, 1897, p. 268, pl. 8, fig. 1; MILLEn, 1899, p. 251; KrAER, 1900, p. 14; RIWMBLER, 1904, p.

242, text·fig. 75; SIDEBOTTOM, 1905, p. 1, pl. 1, fig. 1; CusnMA:'-1, 1910, p. 36, text·figs. 25-28; HERON·ALLEN and EARLANO, 1913 (a), p. 16, pl. 2, figs. 3-6, 10-16; 1913 {c) p. 40; PEARCEY, 1914·, p. 1000; HI::RON·

ALLEN and EARLANO, 1915, p. 609; 1916 (a) p. 219; CusmJAN, 1918,

p. 34, pl. 13, figs. 1-6, pl. 14, figs. 1-3; 1920 (b), p. 594; 1921, p. 6~; LACROIX, 1929, p. 8, te~t·figs. 13-15.

D

esc

Tiption.

-

Te

st

free or attached, nearly spherica

l

; c

hamber

built

of

a

s

ingle layer

of comparatively

larg

e

and

coarse

sa

nd

grai

n

s

firmly

cemented

;

ape

rlu

re

ind

e

finit

e

:

c

ol

o

r

vary

in

g

with the material

of

t

he

te

s

t.

Diamet

e

r,

0.60-0.95

mm.

Localities.

-

Off

Yu·

no

s

hima,

15 fathom

s

;

off

Futagojima,

2

0 fa-thom

s.

Remarks.

-

I

h

ave

a few specimens of t

his

s

peci

es

taken from th

e

localiti

es

above

mention·

ed,

and

they

are

co

m·

paratively sma

ll in

size.

BRADY

(1884)

reported

Texl·fig. 2. Psammosphaem fusca F. E. ScHULZE. x50.

this

spec

i

es

from the d

ee

p wat

er

in

the

western sea of

Japan. Jud

g

ing

from the record

s

referring to thi

s

species, this

s

p

ec

ie

s see

ms to be

wide

ly

distributed in the

c

old water

s

. But HEHON-ALLEN

a

nd

EARLAND

(1915)

r

ecorded

this

s

pecie

s

also from

th

e

warm and

s

hallow

water

of

the

Kerimba Archipelago.

(6)

--52

Y. H

A

D

A

3. Psammosphaera parva

FLI

NT.

(Text·fig. 3)

Psammosphaera [usca (part), H. B, BRADY, 1879, p. 27, pl. 4, fig. 2; 1884, P· 249, pl. 18, figs. 2-4.

Psammosphaera pa1·va, FLINT, 1897, p. 268, pl. 9, fig. 1; RHUMBLEH, 1904, p. 242, text-fig. 77; CusHMAN, 1910, p. 36, text-figs. 29, 30; 1918, p. 35, pl. 12, figs. 4-6; 1920 (b), p. 594-, pl. 75, fig. 3; 1921, p. 47, pl. 2, fig. 7.

D

esc

r

ip

tion.

-

Test fr

ee

or

adh

e

r

e

nt,

u

s

u

a

ll

y

p

ene

trated b

y

a

sponge

s

pi

c

ule,

s

mall, spheri

ca

l,

si

n

g

l

e

c

h

am

b

e

r

ed,

without

a

d

e

fini

te

aperture,

b

e

ing

rep

la

ced

b

y

numer

o

u

s

fin

e

por

es sc

att

e

r

e

d among

th

e

sa

nd

Text-fig. 3. Psammo· sphaera parva FLINT. x 55.

gra

in

s; wa

ll

composed of sa

nd

g

r

a

in

s

fi

r

ml

y

unit

ed

by the

cement

in

g s

ub

sta

n

ce; color

us

u

a

ll

y grey

i

s

h

brown.

Diam

e

t

e

r

, a

b

o

ut

0 .

50 mm.

Locality.

-

Off Yun

os

hima

,

1

8 fathom

s.

R

e

m

arks.

-

Th

e

species

i

s ex

ceedingly

rare

in

Mutsu Bay.

The

spec

im

e

n

s

in

my

hand

are

of

r

at

h

er

sma

ll

s

i

ze

and none

of

them was

penetrated

by

a

spo

n

ge

s

picul

e

as

reported by C

us

HMA

N (19

10 )

in

th

e

case

of

the

s

p

ec

im

ens

which wer

e

taken

off

the

so

uth

ern

coast of

Hondo

fro

m

a

d

ep

th

of

943 fathoms.

Subfamily

SACCA.ti'

IMINI

NAE.

Test free, w

ith

a

d

e

finite

aperture

;

wall

of

firml

y

agglutinat

ed

sa

n

d or sponge sp

i

c

ul

es.

Genus

PROTEONINA

WILLIAM

S

ON, 1858

.

T

es

t

free,

a

fu

s

i

form

or

fl

as

k-

s

h

a

p

e

d

undi

v

id

ed

c

h

a

mb

e

r;

wa

ll

of

coarse sa

n

d g

r

a

in

s

, m

ica

H

akes, or ot

her

agg

lutin

ated

mat

er

ial with

a

thin inner

l

ayer of c

hitin

; apert

ur

e

u

s

u

a

ll

y

c

ir

cu

l

ar, often wit

h

a

sl

i

ght neck whic

h

may

beco

m

e e

l

ongate

.

4 .

Proteonina diffiugiformis

(H. B.

BRADY).

(Text-fig. 4)

Reophax difflugi[ormis, H. B. BRADY, 1879, p. 51, pl. 4, fig. 3a, b; 1881 (b), p. 11;

F

ORAMINIFERA

OF l\!UTSU

BAY

53

1884, p. 289, pl. 30, figs. 2-4-; GoEs, 1894-, p. 26, pl. 6, figs. 196-198; CHAI'MAN, 1895, p. 14; Go£s, 1896, p 28; FLINT, 1897, p. 272, pl. 16, fig. 2; MILLETT, 1899, p. 252; KIAER, 1900, p. 15; SIDEBOTTOM, 1905, p. 2; HERON-ALLEN and EARLAND, 1913 (c), p. 42; 1915, p. 612; 1916 (a), p. 222; 1916 (b), p. 40.

Saccammina difllugiformis, EIMER and PICKERT, 1899, p. 671.

Proteonina difllugiformis, Rnu~mum, 1904, p. 24-5, text-fig. 80a, b; CusHMAN, 1910, p. 4-2, text-figs. 40, 41; RHUMBLER, 1911, pl. 2, figs. 7-14; 1913, p. 378;

PEARCEY, 1914-, p. 1000; CUSHMAN, 1918, p. 4-7, pl. 21, figs. 1, 2; 1921, p. 49; 1927 (a), p. 130; HADA, 1929, p. 10; LACROIX, 1929, p. ~), text· figs. 16, 17.

Description.

-

T

es

t

free, compose

d

of a

s

in

g

l

e,

e

longate,

oval,

or

py

rif

or

m

c

hamber

w

ith

a

s

li

g

htl

y

produ

ced

tubu

l

ar neck; wall

are

n·

aceo

u

s, co

n

s

i

st

in

g of

s

and

g

r

ains firmly

ce

m

e

nt

e

d

; s

urf

ace

rath

e

r r

oug

h,

occasio

n

a

lly mor

e

or

l

ess

smooth

;

aperture

s

impl

e,

t

e

rminal

,

rounded

;

· co

lor

u

s

u

a

ll

y

light

grey or

ye

llow.

L

e

n

gt

h,

about

0.5

5 mm.

Localities.

-

Off

Yuno

s

hima

,

10 -

1

8 fathoms;

off

Mourajima,

20 fat

homs

; off

Futagojim

a,

1 5--25

fathom

s;

be·

tween Oshima and

B

e

nt

en

jima

,

27-33

fatho

m

s.

R

em

a

rks.

-

Thi

s

species was

fo

und

in

ne

a

rl

y

eve

r

y co

ll

ectio

n

from t

h

e var

iou

s stat

ion

s

in

Mutsu Bay.

CusHMAN

(19

1

0 )

reported t

hi

s

spec

i

e

s from th

e so

u

th-east

coast of

Japan

,

w

hile I

(

1929) have

fou

nd

it

a

l

so

in

t

h

e s

h

allow

waters

of

Hokkaid

o

. Judging from

the records

i

o

u

sly

publi

s

h

ed

, it may

be

ass

um

e

d

that

the present

spec

i

es

is restricted

to

co

mpa

ratively

co

ld

water and is fa

irl

y

w

id

e

l

y

distr

i

buted

.

In

the

c

a

se of

th

e spec

imen

s

which

we

r

e o

btain

e

d

a

t the

stations

si

tu

ate

d b

e

t

ween

Osh

ima

and

Bente

n

jima

in Mut

s

u

Bay,

th

e

t

est

ha

s

a

thin

a

nd

somew

h

at

tran

s

lu

cent wa

ll

built up

o

f

mica

scales

and

s

and

g

rain

s

smooth

l

y cemented,

but

in

s

t

a

ti

o

n

s i

n thi

s

b

ay

the

wall

o

f th

e

test

is be

set

grai

n

s.

Text-fig. 4. Proteonina difllugi(ormis (H. B. BRi\DY). X 100.

tho

se

from

ot

h

er

wi

t

h

s

hin

y q

ua

rtz

(7)

54

Y. HADA

5. Proteon

i

na crassa, n.

sp.

(Text·fig. 5)

Description.

-

Test elongate, fusiform, about

twice

as

long

as

broad,

usually

somewhat

curved,

tapering

into

a

long projection at

the base, apertural

end

slightly drawn out ; wall composed of

com-paratively

large sand grain loosely

cemented; aperture simple,

rounded,

terminal at the short tubular

neck

produced from

the main

body;

color dark or

blackish

grey.

Length,

1.28-1.95

mm ;

diameter,

0.65-0

.

85 mm.

Localiti

es. -

Off

Yunoshima,

Text·fig. 5. Pmteonina crassa, n. sp. x25.

10-18

fathoms;

between

Oshima

and Bentenjima,

27-33

fathoms.

Remarks.

-

This species seems

to be rather common at the

lo-calities above mentioned, but it

is

difficult to obtain complete

speci-mens as they easily fall into pieces,

the connection

among the

ag-glutinated

materials

of the test

being

very

loose

.

In

regard

to

the

shape

of the test the present

species

closely resembles

Pro-leonina helenae. But

the materials

of the test are different

in both

a, side view. b, apertural view.

species,

viz. in the present species

the test is composed of coarse sand grains, while

in

Proteonina

helenae

it is

made up of fragments of the broken tests of the other Foraminifera.

Family

Reophacidae.

Test consisting of either an irregular or a generally

rectilinear

series of chat'nbers,

typically increasing in

size as

added, simple or

labyrinthic ;

wall chitinous with

usually

an exterior of agglutinated

materia

l

, sand grains,

sponge

spicules, or

the

tests of other

foramini-fera ; aperture

usually

terminal,

simple

or

mult

i

ple.

FORAMINIFERA OF MUTSU BAY

55 S

u

bfam

i

ly

REOPHACINAE.

Chambers

typically

i

n

a regu

l

ar

r

ect

il

inear

series.

Genus

REOPHAX MoNTFORT,

1808.

Test free,

elongate, composed of seve

r

al

undivided

chambers,

ranging from overlapping

to

remotely separated ones connected by

stolon-like necks,

in

a straight or curved

l

inear series ;

wall single, of

agglutinated

materia

l

, firmly

cemented, sand gra

i

ns,

m

i

ca sc:tles,

sponge

spicules, or other foramin

i

fera;

aperture simp

l

e, termi

n

a

l

,

sometimes

with a s

l

ight neck.

6. Reophax scorpiurus

MoNTFORT.

(Text fig. 6)

Lituola scot·piums, H. B BnADY, 1864., p. 467, pl. 48, fig. 5; 1870, p. 291; DAWSON, 1871, p. 86, fig. 4.

Lituola nautiloida, var. scorpiurus, BuTSCHLI, 1880-1882, p. 192, pl. 5, fig. 18. Reophax scorpiu•·us, H. B. BnADY, 1881 (b), p. 11; 1884, p. 291, pl. 30, figs. 12,

15-17; EccEH, 1893, p. 65, pl. 4, fig. 18, pl. 5, figs. 45, 46; Go~:s, 1894, p. 24., pl. 5, figs. 158, 15), pl. 6, figs.

164-167; CHAPMAN, 1895, p. 14; Goi~s. 1896, p. 26; FLINT, 1897, p. 273, pl. 16, fig. 3; MILLETT, 1899, p. 254.; BAGG, 1908, p. .126; CusHMAN, 1910, p. 83, text-figs.

114.-116; RHUMBI.EH, 1911, pl. 8, figs. 2-5; 19J3, p, 470; HERON-ALL!::N and EAHLAND, 1913 (c), p. 43; PEAHCEY, 1914, p. 1006; HEHON·ALLEN and EA!lf,AND, 1916 (a), p. 222; CusHMAN, 1920 (a), p, 6, pl. 1, figs.

5-7; 1920 (b), p. 598; 1921, p. 65, pl. 6,

fig. 6.

Nodulina scorpiura, KlAEH, 1900, p. 23.

Desc1iption.

-

Test

free, composed of

se-veral

somew

h

at inflated

chambers

increasing

in size as added,

usually

curved

in

the early

portion: wall

c~msisting

o

f

comparatively c;:oarse

sand grains

and

of ot

h

er foreign matters;

aper-ture s

i

mple at the

s

l

ig

h

t

l

y

produced

end

of

the

last

-

formed chamber ; co

l

or varying with

the

Text-fig. 6. · Reophax scorpiU?'llS J\10NTFOHT.

(8)

56 Y

.

HADA

agg

l

utinated material

of t

h

e wall.

Length,

up

to 2.40

mm.

Localities.

-

The depth

at t

h

e stations at

which the material

was

obtained was 4-33 fathoms.

Remarks.

-

Various forms of irregu

l

ar shape are

included

.

u

nder

t

hi

s

spec

ific nam

e.

In

Mutsu Bay this

species

i

s

r

a

th

er common, a

nd

the test

i

s

usually

e

l

ongated, tapering

and

s

li

ght

l

y curved.

In

genera

l

features t

h

e spec

i

es

look

s

li

ke

R

e

ophax dentaliniforms, but

the

absence

of

a

d

i

st

inct

cyli

ndri

ca

l

neck separates

the pr

ese

nt

s

pecies from

a fore

said

spec

ies.

7. Reophax pilulifer H.

B. BR

ADY.

(Text-fig. 7)

Reophax piluli(er, H. B. BRADY, 188<1-, p. 292, pl. 30, figs. 18-20; FtrNT, 1897, p.

273, pL 18, fig. 1.

Reophax pilulifer, GoES, 1894, p. 25, pl. 6, figs. 176-180; CHAPMAN, 1895, p. 15;

GoEs, 1896, p. 27; CusHMAN, 1910, p. 85, text-figs 117, 118; 1920 (a), p. 7, pl. 2, fig. 1; 1921, p. 66, pl. 12, fig. 1.

Description.

-

Test

usually

curved a

n

d sometimes straight, composed

of three to

seven su

bglobular

c

hambers

,

increas

in

g rapid

l

y in size

a

s

added; wall consisting of coarse sand grains, but presenting a

rather

s

m

oot

h

exterior; aperture

simple,

termina

l

at

Text·fig. 7. Reophax piluli[e1· H. B. BRADY.

x30.

the

en

d

of t

h

e

last-form

ed

chamber ;

color grey

or brown.

Length, about 1.50

mm.

Localities.- Off Yunoshima,

15 ·fa

thoms;

off Futago

jim

a,

18 -

25 fathoms;

n

ear

Oshima,

23 f

atho

m

s.

Remarks.

-

This spec

i

es was

hitherto

o

b·

tain

e

d

o

nl

y from

th

e

deep sea

.

In

t

h

e Cha

l-l

enger

Report H.

B. BRADY

(

1884

)

recorded

it from

a dept

h

of

1875

fat

h

oms

in

t

h

e eastern

sea

of

Japan,

and CusHMAN (1910)

reported

this species

at

a

depth

of 437 fathoms

off the

so

uthern

coast of

Japan.

It

seems rather

pe-cu

li

ar t

h

at several spec

im

ens of

this

species

ha

ve

been found in

such shallow waters as

in

Mutsu Bay.

FORAMINIFERA

OF

i\!UTSU

BAY

8 . Reophax

curtus

CusHMAN.

(Text-fig. 8)

Reophax sca1·piu1'US (part), GoEs, 1894, p. 24, pi 5, figs. 160-163.

Reophax curtus, CusHMAN, 1920 (a), p. 8, pl. 2, figs. 2, 3.

57 Description.

-

Test

so

m

ew

hat

fusiform,

tap

e

ring,

s

traight

o

r

often

s

lightly

curved

in th

e

early

portion,

com

p

osed of

thr

ee

or four

cham-bers, eac

h

larg

e

r than

i

ts predecessor, last

-

formed chamber oval or

fusiform,

occupy

in

g a

l

arge

proportion

of

t

h

e

test ; wall

construc

t

ed

of

san

d

grains

ce

mented neatly

with a cons

id

erable a

m

ount

o

f brown

c~menting

mat

er

i

a

l

; aperture s

impl

e

,

terminal,

s

i

tuated at

th

e

produced

e

nd

of

the

c

h

a

mb

er

without definite neck; co

l

o

r

u

s

uall

y

brown.

L

engt

h

,

u

p to

1.50 mm.

Localities.

-

Off Yunoshima,

10-

18 fa-thoms

;

off Futagojima, 18-

25 fathom

s;

near

Oshima 23 fathoms

.

Remarks.

-

I hav

e

id

entified the

s

p

ec

i-mens from Mu

t

s

u

Bay as

Reophax curtus

as t

h

ey s

ho

w t

h

e features

id

e

ntical

with

those

of this

spec

ies

except for t

h

e co

l

or of

the test. The color of the

t

es

t

is

brown

i

n

the case of the specimen from Mutsu Bay

w

hil

e

it

is

g

r

ey

in

t

h

e s

pecimen

s

reported

Text-fig. 8. Reophax curtus CUSHMAN. X 50.

by CuSHMAN (1920).

Howev

er,

the

co

lor

o

f

the test

usually

varies

i

n great deal with

th

at

of

the

cement

in

g

material, and thus is

not

to

be

taken as o

n

e of the c

h

aracteristics which dist

i

nguis

h

t

h

e

arenaceous

Forami

ni

fera

.

9. Reophax bilocularis FLINT.

(Text-fig. 9)

Reophax bilocularis, FLINT, 1897, p. 273, pl. 17, fig. 2; CusHMAN, 1910, p. 90, text· fig. 127a, b; 1920 (a), p. 10, pl. 3, figs. 3, 4; 1921, p. 74, pl. 12, fig. 7.

Description

.

-

Test

composed of

two inflated

chambers arranged

m a stra

i

g

ht

or a curve

d lin

e,

initial

e

nd

rounded or occasiona

ll

y

wit

h

a very

s

m

a

ll

c

h

a

mb

er,

apertura

l

end

produc

e

d into

a

s

hort

(9)

l

58

Y. HADA

cylindrical neck ; wa

ll

built

u

p of rather coarse sand gra

in

s

cemented

firmly with

ye

llowi

s

h

grey cement;

aperture

simple,

nearly

circular

at

the

end of a s

hort

tubu

l

ar neck.

Length, up

to

1.50 mm.

Local

ities

.

-

It was

obtained at

nearly

all stations,

8-30

fathoms.

RemaTks

.

-

This

species is rather

common in Mutsu Bay:.

As

shown

in figures,

the spec

im

ens

from this bay

differ from

those

figured

Text-fig. 9. Reophax bilocularis FLINT. x 50.

by FLINT

1)

in the rather short test composed of chambers not

strongly

elogated, 2)

in the

suture whic

h

is not

strong

l

y

depressed,

and 3)

in

the

material

of the wall consisting mainly

of

coarse sand gra

in

s and

not

being mixed with

cast

tests

of other Foraminifera.

I have

identi-fied

the specimens from Mutsu

Bay

as

Reophax

bilocularis on

the

basis

of the test consisting of

two

chambers

.

10. Reophax excentricus

CusHMAN.

(Text-fig. 10)

Reophax excentricus, CusH~IAN, 1910, p. 92, text·fig. 143; 1927 (a), p. 133, p. 1, fig. 3.

Description.

-

Test

straight or s

li

g

htl

y c

ur

ved, composed

of

four

to

six

inflated

chambers

increasing

rapidly in size from t

h

e

first

as

added ; wall consisting of coarse sand grains cemented

firmly together ;

aperture

rounded, at

the

end

of a sho

rt

tubular neck, s

li

ght

ly

produced

FORAMINIFERA OF MUTSU BAY

from

the last-formed

chamber ; color vary

in

g

with

the

agglutinated

material

of

the

test.

Length, up

to 2.60 mm.

Localities.

-

It is obtained

at

the most

of

the stations,

at depths of

8-30

fathoms.

Remarks.

-

The

spec

i

es seems

to be

com-mon

in

Mutsu Bay. The

type

-

spec

im

en was

obtained from the stomach

of

Holothurians,

which was

dredged by

the U-

S. F

i

sh

Commis-sion Steamer "

Albatross " in

the

Bering

Sea

from

a depth

of 1771

fathoms.

The specimens

from Mutsu

Bay

are

rather

larger than

the

type,

but

they

resemble it

very closely in

ge-neral features.

59

Text-fig. 10 Reoplwx

excent1·icus CcSHMAX. x30.

11. Reophax dentaliniformis H.

B. BRADY. (Text-fig. 11)

Reophax dentalini{ormis, H. B. BRADY, 1881 (a), p. t19; 1884, p. 293, pl. 30, figs. 21, 22; Go£s. 1894-, p 25, pl. 6, figs. 172-175; ScliLU.\IBERGER, 1894, p. 239; CHAPMAN, 1895, p. 15; Goiis, 1896, p. 27; FuNT, 1897, p. 274-,

pl. 18, fig. 2; MILLETT, 1899, p. 254-; CUSHMAN, 1908, p. 23; 1910, p. 87, text-fig. 121; RHUMBLER, 1911, pl. 8, figs. 21, 22; 1913, p. 473; PEARCEY, 1914, p. 1006; CusHMAN, 1920 (a), p. 18, pl. 5, figs. 4-, 5; 1921, p. 68, pl. 12, fig. 4; 1927 (a), p. 132.

Nodulina dentalinij01·mis, KJAEI!, 1900, p. 24.

Dese1'iption.

-

Test slender, cylindrica

l

,

tap-ering, straight or

more or less

curved,

com-posed

of rather

coarse sand grains,

but neatly

cemented ;

aperture

simp

l

e

at

the end of a

short tubular

neck;

color

usually

grey.

Length,

up

to 1.80 mm.

Localities.-

Near Futagojima, 18 fathoms;

between Os

him

a

and Bentenj

i

ma,

30-33

fa-thoms.

Remarks.- Thi

s

spec

i

es

is

comparat

i

ve

l

y

Text·fig. 11. Reophax dentaliniformis H. B. BRADY. x40.

(10)

-60

Y. HADA

rare

m

Mutsu

Bay. Its

occurrence was also

reported

.

by

ScHLUM-BERGER

(1894)

from

the

Sea

of

Okhotsk.

12. Reophax enormis HADA.

(Text-fig. 12)

Reopha.x enormis, HADA, 1929, p. 10, text-figs. a-d.

Description.

-

Test typically

tapering, composed

usually

of three

chambers arranged

in a

nearly straight series, showing an

irregular

contour,

apertural

end

drawn

out

into

a short

tubular neck ; wall

constructed of sharp

e

dged sand grains giving an irregular appearance;

s

uture

s

often

indistinct due to

incomplete

sep

ta

;

aperture simple, at

the end of a short

neck ; color variable

in

accordance with that

of

material forming

the wall.

Length,

up

to

0.95 mm.

Localities.

-

Off the

Marine

Biological Station,

10-18 fathoms;

off

Fu

tago

jima,

18-25

fathoms;

near Oshima,

23 fathoms

;

between

Oshima and Bentenjima,

30-33

fathoms-Remarks.

-

This species occurs not very abundantly, but is widely

di

s

tributed

in

Mutsu

Bay. I

(

1929) ha

ve

also collected some specimens

of it in the

inlet of

Oshoro,

Hokkai

,

do.

The

spec

i

es

1s more or

l

ess

a c

h

Text-fig. 12. Reophax enormis HADA. x 60.

a, side view of a specimen. b, apertural view of the same. c, side view

of the other specimen.

FORAMINIFERA

OR MUTSU BAY

61 similar

to

Reophax

scorpiurus

in

general appearance,

but it may be

distinguished

from

the

latter by the j)l-defined

sutures and

by the

surface which

is very

coarse.

13 .

Reophax gracilis

(

K.IAER)-(Text-fig. 13)

Nodulina. gracilis, KrAER, 1900, p. 24, text-figs. (without

No.).

Description.

-

Test

elongate, composed of

about

nineteen loosely

connected chambers

in

an

irregularly curved

linear

series,

but

separated

by

distinct sutures,

tapering

gradually

to

the

initial

e

nd

;

wall

finely

arenaceous, thin and

delicate ;

aperture rounded, terminal; color

light

or

yellow-ish grey.

Length,

about

0.55 mm

.

Locality.

-

Off Yunoshima,

18 fathoms.

Remarks

. -

A

few

specimens of this species

were

found

in

my material

obtained

from tbe

above station.

They

are

closely

similar

to the

Norwegian specimens

figured by KIAER

(1900),

but on the whole they are smaller than the latter

.

Family

Ammodiscidae.

Text-fig. 13. Re

o-pha.x gracilis (KIAER) -x120 . .

Test composed of a globular

proloculum

and

long, undivided,

tubular, second chamber, ·

usuall

y

close

coiled, at

l

east

in the

young,

planispiral, conical spiral, or

irregularly winding; wa

ll

of

fine

aren-aceous

material

with

much

cement,

usually of

a yellowish- or

reddish-brown .

color; aperture

formed by the open end of the tubular chamber.

Subfamily

AMMODISCINAE.

Test free.

Genus

GLOMOSPIRA

RzEHAK,

1888.

(11)

62

Y. HADA

cham

ber w

inding

a

bout i

ts ea

rli

e

r

co

il

s

m

va

ri

o

u

s

pl

a

n

es; wa

ll

of

fin

e arenaceo

u

s

m

ater

i

a

l

w

ith

a

l

a

r

ge

prop

o

r

t

i

o

n

of ye

ll

ow

i

s

h-

o

r

ed

d

ish-brown

ce

m

e

nt

;

ap

ert

u

re at t

h

e e

nd

o

f

t

h

e t

ub

e

.

1

4. Glomospira

g

ordialis

(JONES

a

nd

PARKER). (Text-fig. 14)

Trochammi·na gm·dialis. CARPENTER, PARKER and Joi"ES, 1862, p. 141, pi 11, fig. 4.

Ammodiscus gordialis, H. R BRADY, 1881 (b), p. 12; 1884, p. 333, pl. 38, fig. 7-9; EGGER, 1893, p. 72, pl. 5, figs. 39, 40; FLINT, 1897, p. 279, pl. 24, fig. 1.

Gm·diammina gordialis, KIAER, 1900, p. 21; RHmtBLER, 1904, p. 282, text-fig. 132; CusHMAN, 1910, p. 76, text· figs. 88-90; PEARCEY, 1914, p. 1005; L AC-ROIX, 1929, p. 21, text-fig. 31.

Glomospim gordialis, CusHMAN, 1918, p. 99, pl. 36, figs. 7-9.

Description.

-

Test free,

Text·fig. 14. Glomospira gm·dialis. (JoNES and PARKtm). X 110.

varia

b

le in shape, asy

mm

et

ric

a

l

, co

m

posed

of a proloc

ul

um a

n

d a long, t

u

b

ul

ar,

u

nd

iv

id

e

d

c

h

am

b

er o

f n

early uniform

d

iameter co

il

e

d u

p

i

n

an

i

r

egul

ar

ma

nn

er

a

n

d i

n

varying d

i

rec

ti

o

n

s;

wa

ll

a

r

enaceo

us,

neatly ce

mented

w

ith

fi

n

e

m

a

t

erial

; aperture s

im

p

l

e

,

rou

n

ded,

at the end of

th

e t

ube;

color

r

eddis

h

b

rown

i

n t

h

e ce

n

t

r

a

l

co

il

, fadi

n

g

gra

du

a

lly

into ye

ll

ow

i

s

h

brown

.

D

i

a

m

ete

r,

ab

ou

t

0 .

38 mm

.

Loca

l

i

t

y.- Near

F

u

t

ago

ji

ma

,

18 fatho

m

s.

Re

m

arks

.

-

Thi

s spec

1 es seems to

be rare

;

o

nl

y two co

m

parat

i

ve

ly

s

m

a

ll

s

p

ec

i

mens have bee

n

see

n

.

Fam

il

y

Li

t

u

o

lid

a

e.

Test free, pla

nispi

ra

l

at

lea

st

in

t

h

e yo

un

g,

l

a

t

er po

rti

o

n

in so

me

ge

n

e

r

a

un

co

il

e

d, di

v

id

e

d in

to c

h

a

m

be

r

s, e

ith

er s

i

m

pl

e or

l

abyr

i

nt

h

ic;

wa

ll

are

n

aceo

us

w

i

t

h

va

r

y

in

g proportio

n

s of c

em

en

t in diff

ere

n

t ge

n

e

r

a

n

d spec

i

es,

u

sua

ll

y wit

h

a ye

ll

ow

i

s

h-

or

r

e

d

dis

h

-

b

row

n

ce

m

e

nt

, the

last

-

for

m

e

d

cha

m

b

er

in

t

h

e ad

u

lt o

ft

e

n

w

hi

te ; ape

r

ture

sim

p

l

e

or

com

po

u

nd

.

FORAMINIFEHA OF lv!UTSU BAy

63

Subf~mily HAPLOPHRAGMIINAE.

Test co

m

p

o

sed o

f

simpl

e c

h

a

m

bers, not

lab

y

rinthi

c

.

Ge

nu

s

HAPLOPHRAGMOIDES CusHMAN,

1

9

1

0. Test

o

f

seve

r

a

l

co

il

s,

plan

isp

i

ra

l,

us

u

a

ll

y

n

o

t

co

m

p

letel

y i

n

vo

l

ute,

ch

a

mb

ers s

im

p

l

e

;

wa

ll

s

in

g

l

e

,

arenaceo

u

s or w

ith

spon

ge

sp

icu

l

es,

fir

ml

y ce

m

e

nted

,

am

o

un

t of ce

m

e

n

t va

r

y

in

g grea

tl

y

in

differe

n

t s

p

ec

i

es ;

aper

t

ure s

im

p

l

e, at

th

e

b

ase o

f

t

h

e a

p

ert

ur

a

l f

ace of t

h

e

cham

ber o

r

in t

h

e face of t

h

e cha

m

ber.

1

5. Haplophr

a

gmoides

e

ma

c

iatum

(

H. B.

BRADY). (Text-fig. 15) ·

llaplophragmium emaciatum,

H

.

B.

BRADY, 1884, p. 305, pl. 33, figs. 26-28; EGGER, 1893, p. 70, pl. 5, figs. 53, 54; CHAPMAN, 1895, p. 16; FLINT, 1897, p.

276, pl. 19, fig. 5.

Haplophmgmiwn compressum, MILLETT, 1899, p. 359, pl. 5, fig. 8; HERON-ALLEN and EARLAND, 1915, p. 613, pl. 46, figs. 20, 21.

Haplophragmoides emaciatum., CuSHMAN, 1910, p. 102, text-figs. 150-152; 1920 (a), p. 40. text-figs. 1-3, pl. 8, fig. 4; 1921, p. 80; HADA, 1929, p. 11.