studies on maritip Ostracods 



629 



part of both its anterior and posterior edges; its point is always smooth. The e p i p o d i a 1 

 appendage consists of a small verruciform process. Bndopodite: The first joint 

 has only two posterior bristles, both with short hairs; one of these, situated somewhat laterally, 

 is rather long, in most cases about as long as the anterior sides of the first and second endopodite 

 joints, the other, situated somewhat medially, is most frequently about a third shorter. The 

 three anterior bristles of the second joint are comparatively long; the longest of them is about 

 as long as the longest bristle on the end joint; their relative proportions are, however, about the 

 usual ones in this genus. 



Fig. CWIII.— Conchoecia elegans G. 0. Sars, cJ. — 14. Right first antenna4- IhtMod-shaped organ; l.'iO X. 15. Suctorial 



organ of the e-liristl(> of this antonna; 938 X. 



Maxilla: — Endopodite: In the specimens investigated by me (both from the 

 Arctic and the Antarctic) one of the three bristles on the posterior side of the first joint was always 

 furnished at the middle with rather long, stiff secondary bristles. In one specimen I observed 

 (as an abnormality) on the maxilla of one side two bristles situated close together (instead of 

 one, as is otherwise the rule in this genus) somewhat distally of the middle on the inside of 

 this joint. The ventral side of the end joint is about as long as the distal width of the preceding 

 joint (calculating from front to back); its dorsal side is somewhat more than half this length. 

 The end joint is often partly furnished with hairs. 



