278 CALMAN. 



The maxillipeds are present as long slender processes each 

 tipped by a single seta, inserted on each side close to the base 

 of the lower lip. The seven pairs of thoracic feet are all similar 

 and of the usual form, with powerful subchelate terminations. 



The six abdominal segments are distinct, regularly diminish- 

 ing in size posteriorly, and the first five show rudiments of pleo- 

 pods in the form of slight rounded eminences on the ventral 

 surface. In Palcegygc Borrei, Giard and Bonnier describe the 

 male as having rudiments of pleopods on the first three abdom- 

 inal segments only (1. c, p. 70), but in a later paper the same au- 

 thors speak of the abdominal segments of the male in the genus 

 Palcegygc as being all furnished with these rudiments. (Bull. 

 Scient., XXII, 373. 1890.) The last segment of the abdomen 

 is very small, cordate in form, being veiy narrow anteriorly and 

 having its hinder margin notched ; its greatest breadth is about 

 equal to the length. 



Larva. — The brood-pouch of the female was filled with em- 

 bryos just hatched, and having the form characteristic of the 

 first larval stage of the Epic ar idea. The head is large and pro- 

 jects in front in a rounded hood-like form. The antennules are 

 in the form of rounded tubercles bearing a number of stout 

 spines among which a narrow pointed process appears to rep- 

 resent the rudiment of the flagellum. The antennae are about 

 half the length of the embryo, not yet distinctly segmented, and 

 armed at the tip and about the middle of their length with a 

 few spines. 



The mouth parts are still in a very early stage, and are diffi- 

 ,cult to interpret. In the middle the rudiment of the upper lip 

 can be made out, and immediately behind it are a pair of minute 

 lobes in contact with each other in the middle line. Behind 

 this and at some distance from the middle line on each side are 

 three finger-like appendages, the last of these being minutely 

 forked at the tip. 



Walz figures (Arb. Z06I. Inst. Wien. IV, 2, PI. I, f. 3a) an 

 embryo of Bopyrina virhii at a stage apparently corresponding to 

 that of the present specimens. The upper lip and the pair of 

 small lobes close to it are shown, but there are only two pairs 



