Chile aC HA. 
V.—_OSTRACODA. 
By G. Stewarpson Brapy, M.D., LL.D., D.Sc., F.R.S. 
(3 Plates.) 
In the fifty-seven gatherings submitted to me there occurred only nine species of 
Ostracoda. Of these all except two appear to be hitherto undescribed. The paucity 
of species is accounted for by the fact that the nettings were made on a very limited 
number of small areas, many of them practically identical one with another, and 
differing only as to their various dates. The list of species is as follows :— 
Conchacia innominata, sp. 0. 
Paraconchecia gracilis, Claus. 
Pseudoconchecia serrulata, Claus, var. levis, var. nov. 
Cypridina glacialis, sp. 0. 
Philomedes orbicularis, sp. 0. 
Philomedes assimilis, sp. 1. 
Philomedes antarctica, sp. 0. 
Xestoleberis reniformis, sp. 1. 
Linocheles vagans, g. and sp. n. 
MYODOCOPA. 
CoNCHG@CIA INNOMINATA. 
(Plate II., figs. 7-14.) 
Shell of the male (fig. 7) seen from the side, subquadrangular, height equal to 
about half the length and nearly equal throughout; rostral prominence acutely 
pointed, with an underlying sinus of moderate depth; anterior extremity rounded 
away below, and forming a curve continuous with the ventral margin, posterior abruptly 
truncated, its lower end boldly rounded off; dorsal margin nearly straight or only very 
slightly sinuous, obtusely angular at the posterior extremity, ventral rather boldly 
and evenly arcuate throughout its whole length. 
The capitulum of the frontal tentacle (figs. 8 and 9) is club-shaped, acutely 
pointed and slightly hooked at the apex, and in the male bulbously dilated at the base, 
its inner margin more or less setose ; stem of the antennule in the male (fig. 8) dilated, 
