4 
PACIFIC SCIENCE, Vol. XXI, January 1967 
TABLE 2 
Known Depth Distributions in Fathoms of Some Ostracodes from the Drowned Terraces in the 
Hawaiian Islands 
SPECIES 
PORT JACKSON, AUSTRALIA 
TORRES STRAITS, AUSTRALIA 
| QNV1SI A8009 
"NEAR STATION 305" 
BRADY, I860 
NEW CALEDONIA 1 
a 
i z 
< 
< 
UJ 
N 
=• 
r- Q 
Z 00 
2 
I 
FRIENDLY ISLANDS j 
SAMOA 
FIJI 
HAWAIIAN ISLANDS 
CLIPPERTON ISLAND jj 
CORONADO ISLANDS 
BAY OF NAPLES 
ASCENSION ISLAND 
EASTER ISLAND 
Bairdia kauaiensis n. sp 
2-10 
! 155 
6-8 
160 
3-6 
LIT. 
22-40 
22-55 
Bairdia hanaumaensis n. sp. 
5, 40 
Bairdia attenuata Brady, 1880 
i 
| 155 
5, 40 
Bairdia ex pan sa Brady, 1880 
LIT. 
40 
Macrocypris gracilis (Brady), 18 80 
LIT. 
20-22 
Pontocypris simplex (Brady), 1880 
— 
; 
7 
Bythocerat ina monstruosa n. sp. 
1 
5 
Loxoconcha condyla n. sp. 
5, 22 
22-55 
Loxoconcha longispina Key, 1953 
LIT. 
4 
22-40 
22-55 
Loxoconchella hono/u/iensis (Brady), 1880 
; 2-6 
|UT. 
LIT' 
22-40 
22-55 
Loxoconchella anomala (Brady), 1880 
3-6 
— 
i LIT. 
40 
Paradoxostoma cf. P rubrum Muller, 1880 
t 
? 
C/etocythereis bradyi n. sp, 
150 
t“ 
22 
Xesto/eberis nana Brady, I&80 
18 
5, 22 
Anchistrocheles fumata Brady, 1890 
| 
LIT. 
"Cy there" caudata Brady, 1890 
4 
5 
little is known of the maximum depth-distribu- 
tions of these living species and definite con- 
clusions cannot be made about the initial depth 
of formation of the terraces. However, these 
assemblages do suggest shallow water environ- 
ments of deposition and support an extrapola- 
tion of the paleoecological findings of Menard 
et al. at Station AR to the other terraces. 
The apparent lack of modern sediments on 
the drowned terraces indicates that they are non- 
depositional realms, at least in part, and may 
have been exposed since the time of their for- 
mation. The fossil assemblages, therefore, may 
represent a mixture of various ages. Because of 
the present extreme depths this possible mixture 
would not be expected to contain living ostra- 
codes, at least not of the shallow water forms 
treated here. The lack of well preserved speci- 
mens lends support to the view that all are 
fossil occurrences. 
In Table 2, occurrences of known and new 
species are reported from Easter Island, Clip- 
perton Island, and from depths shallower than 
40 fathoms in the Hawaiian Islands. The re- 
maining stations are those of Brady (1880, 
1890) and Muller (1894). Depths listed as 
littoral refer to "between tide marks" as used 
by Brady (1890). 
ACKNOWLEDGMENTS 
The writer is indebted to R. D. Terry of 
North American Aviation Corporation, who 
was responsible for collecting most of the 
dredge hauls from the Hawaiian Islands. 
Thanks are also due H. W. Menard and F. P. 
