Late Cenozoic Ostracodes — Holden 
5 
Shepard of Scripps Institution of Oceanog- 
raphy, who collected dredge hauls from stations 
AR and S-23. E. C. Allison offered great assis- 
tance in many aspects of this work and contri- 
buted samples from stations HA, CL, and EA, 
as well as having in his charge all the dredge 
haul samples. Also appreciated were the helpful 
comments and suggestions made by E. G. 
Barham and E. L. Hamilton of the U. S. Navy 
Electronics Laboratory at San Diego, California, 
and N. J. Ayer, a fellow graduate student at 
San Diego State College. The paper has bene- 
fited greatly from discussions with W. M. 
Briggs, Jr., of the U. S. Geological Survey, and 
J. E. Hazel of the U. S. National Museum, who 
read and offered many helpful suggestions on 
the final draft. R. H. Bate of the British Mu- 
seum (Natural History) kindly compared 
specimens of several of the species with G. S. 
Brady’s types. Mr. Ayer, presently at the 
University of Illinois, proof-read the final draft. 
DISCUSSION OF THE STATIONS 
Several oceanographic expeditions have 
dredged the submarine terraces in the Hawaiian 
island chain during the past few years. The 
most informative sample from station AR of 
this paper was collected September 2, 1961 by 
V. W. Menard of Scripps Institution of Ocean- 
ography aboard the Scripps Institution’s R. V. 
"Argo.” 
During March 26-31, 1962, thirteen dredge 
hauls were collected at various locations from 
the drowned terraces by R. D. Terry of the 
Autonetics Division of North American Avia- 
tion Corporation at Anaheim, California, aboard 
the U.S.S. "Greenlet.” Of the dredge hauls 
obtained in this series, most of which consisted 
of coral fragments, eight contained rocks bear- 
ing fossil ostracodes. The dredge haul from Sta- 
tion T-13 of the same series was not collected 
from a drowned terrace but from Penguin Bank, 
at a depth of only 22 fathoms, and contained 
only Recent ostracodes. 
The most recently recovered dredge haul 
from the area, Station S-23 of Francis P. Shep- 
ard of Scripps Institution of Oceanography, 
was taken aboard the Scripps Institution’s R. V. 
"Spencer F. Baird’’ on September 9, 1962. Un- 
like the previous dredge hauls by Menard and 
Terry, Shepard’s was from a deeper terrace on 
the northeast side of the island of Kauai at 355 
fathoms. This terrace is not connected with the 
terrace complex of the central islands but is 
separated by a depth of about 1,600 fathoms. 
The sample from Clipperton Island (station 
CL) was collected by E. C. Allison and C. Lim- 
baugh during the Scripps 1956 AGE Expedition. 
Material from station HA from Hanauma Bay 
in the Hawaiian Islands was collected by E. C. 
Allison in 1961. The above Recent stations are 
in relatively shallow water and specimens were 
obtained using scuba diving equipment. 
The Recent station notations (except for Sta- 
tion T-13, which is part of the series collected 
by R. D. Terry), and including Stations CL 
and HA have been established by the writer. 
Notations AR, EA-1, and EA-2 are used here 
for the fossil stations established by Menard, 
et al. (1962) and during the Downwind ex- 
pedition, respectively. In the following para- 
graphs the locations, bathymetry, and general 
physiography of each station are given together 
with any available information about the sam- 
ples. 
Station T-l. A dredge haul from 21° 9.4'N, 
157° 54.6'W at 300 fathoms to 21° 7.3'N, 
157° 54.4'W at 310 fathoms across the top of 
a terrace. A small coarse fraction was screened 
from light-tan coraline muds. 
Station T-2. A dredge haul from 20° 51.8'N, 
157° 54.7'W at 340 fathoms to 20° 52.2'N, 
157° 53.6'W at 240 fathoms, up to the edge 
of a terrace. About 20 lb of basalt heavily en- 
crusted with Mn0 2 , several manganese nodules, 
and fossil reef material were collected. 
Station T-4. A dredge haul from 21° 16.2'N, 
156° 34.3'W at 280 fathoms to 21° 16.0'N, 
156° 34.1'W at 278 fathoms, across the outer 
edge of a terrace. About 10 lb of fossil reef 
material were collected. 
Station T-7. A dredge haul from 20° 33.3'N, 
156° 54.4'W at 297 fathoms to 20° 34.9'N, 
156° 52.9'W at 221 fathoms, across the top of 
a terrace. Total sample consisted of a quarter- 
pound rock specimen of calcareous algae with 
fossil material filling the cavities. 
Station T-8. A dredge haul from 20° 34.7'N, 
156° 54.5'W at 275 fathoms to 20° 34.3'N, 
156° 55.8'W at 31S fathoms, across the top of 
