42 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



joint with large curved terminal claw, 3 dorsal spines, and numerous 

 spines medially (fig. 18e), 2nd joint with large terminal claw and 1 long 

 and 1 short spine dorsally, 3rd joint with large curved terminal claw 

 and 1 short spine dorsally and 1 ventrally. 



Maxilla (figs. I87, 19^) : protopodite with short bristle on anterior 

 margin and fringe of marginal hairs; basale with bare bristle near 

 exopodite; exopodite with 1 long and 2 short bristles; 1st endopodite 

 joint with 2 stout curved bristles with marginal spines, bristles annulate 

 distally; end jomt with 5 stout pectinate bristles, 2 slender lateral 

 bristles and 1 short medial bristle; 1st endite with about 6 bristles, 2nd 

 endite with about 5 bristles, 3rd endite with 4 bristles. 



Fifth limb (fig. 18k) : endite with 1 bare bristle; exopodite: 1st joint 

 with 2 bristles with short spines, 2nd-5th joints with marginal hairs 

 and total of 7 bristles, 6 with marginal spines, 1 bare, joint sutures 

 indistinct; epipodial appendage with about 36 bristles. 



Sixth limb (fig. 19a) : endite with 1 long and 2 short bristles, ventral 

 margin of end joint with 10 spinous bristles followed by 2 hirsute 

 posterior bristles. 



Seventh limb (figs. 196, c) : cleaning bristles: 6 terminal, 4-5 proxi- 

 mal, each with 3-8 bells; terminal comb with 8-14 teeth on each side. 



Furca (figs. 19d-f): each lamella with 5 curved and pointed claws; 

 claw 1 joined to lamella, remaining claws separated from lamella by 

 suture; claws decrease in length proximally on lamella; posterior 

 margins of claws 1-4 with lateral and medial teeth in rows; distal end 

 of anterior margin of 5th tooth on left lamella with small tooth or 

 spine; ventral margin of lamella, posterior to 5th claw, with 2-3 spines 

 on left lamella and 1 spine on right lamella; medial surface of left 

 lamella, between claws 4 and 5, with small spine; margins of lamellae 

 without hairs; anterior part of ostracod body, proximal to furca, 

 spinous (figs. 19f/, g). 



Frontal organ (figs. 17h; 19h, k): 2-jointed with short 1st joint and 

 elongate 2nd joint, with rounded tip. 



Genitalia (fig. 19/) : genitalia with 2 large vaginal openings beneath 

 5 minute ringed bristles. 



Eyes: median eye large, pigmented (figs. 17 h; 19h, k); lateral eyes 

 small, pigmented, with about 6 ommatophores around edge (figs. 

 19i, k). 



Upper lip (fig. 19^^) : triangular process present between upper lip 

 and basis of 1st antenna. 



Eggs (fig. 19Z) : each egg surrounded by transparent membrane and 

 containing numerous small oil globules; 6-8 eggs occupying brood 

 chamber between posterior lobes of valves. 



Ecology. — Depth: One specimen from the North Carohna shelf 

 was collected from a depth of 19 m, the second from 200 m. Darby 



