CUSHMAN: VINEYARD SOUND OSTRACODA. 
381 
short stout strongly curved claw; third foot with the second and third 
joints fringed at the ends with short, closely set hairs. 
Length of the shell 0.9 mm. 
Habitat .— Found in Vineyard Sound, “Fish Hawk” station 7723. 
The soft parts were not well preserved; only those figured were in 
The structure of the first foot seems very much 
like that of Ivrithe but the other portions of the animal are much more 
like Cythereis. 
■ < » •. t • r j / \ ‘ • ' • * 
Genus Cytherideis Jones. 
Cytherideis Jones, ’56; Brady, ’68, p. 454; ’80, p. 146; Brady and Norman, 
’89, p. 226; G. W. Muller, ’94, p. 380. 
Shell elongated, subovate, tapering and depressed anteriorly, 
antennulae slender, with few setae, last joint with six short terminal 
setae, penultimate and antepenultimate joints each bearing a single 
apical seta; mandible slender and curved; maxilla with the first 
segment much stouter and of greater size than the three others. 
Cytherideis fasciata (Brady and Robertson). 
PI. 37, fig. 114a-118. 
Cytherideis subulata var. fasciata Brady and Robertson, ’74, p. 55, pl. 1, fig. 
12-13. 
This seems to be a valid species rather than a form of C. subulata 
as originally described. In Vineyard Sound no specimens of typical 
C. subulata were found, while living examples were dredged which 
exactly correspond to those described as var. fasciata. The dark 
bands are of the same size and shape and the epidermis is reticulated; 
the areas thus cut off are minutely punctate. The specimens, too, 
are larger than C. subulata. 
Antennulae with groups of hairs on each side of the elongated second 
joint; antennae with the second joint set with a number of long slender 
scattered setae on the outer border, third joint very much elongated; 
first foot with very stout first joint, the main seta of the upper border 
being very long and stout, seta of the ventral side also stout, last three 
condition for study 
