172 STALK-EYED CRUSTACEA. 
just behind the margin of the orbit, and extends to the posterior border of 
the carapace, forming the upper boundary of the hepatic and branchial 
areas. The antennal carina takes its origin in a strong spine on the anterior 
margin of the carapace at the base of the second antenne, and runs backward 
on the branchial region nearly to the hind margin of the carapace; it is con- 
nected with the orbital carina by an oblique carina which divides the hepatic 
from the branchial regions. Between the orbital and antennal carine, nearest 
to the former, is a half-carina, which extends from the posterior margin of 
the carapace forward to a point a little distance behind the branchio-hepatic 
carina. Below the antennal carina are two more longitudinal carine sub- 
parallel with one another and with the inferior margin of the carapace ; 
the uppermost of these does not quite reach the margin of the carapace at 
either end; the lowermost begins at the antero-lateral margin, courses back- 
ward as a submarginal carina, and is continuous posteriorly with the light 
carina which runs along the posterior border of the carapace ; through this 
medium it is continuous with its fellow on the opposite side of the carapace. 
The infra-orbital angle is not spinous, but a short distance below it a small 
acute spine occurs at the base of the antennule. The surface of the carapace 
is corrugated, most emphatically in the field betwixt the dorsal and orbital 
carinee. 
All the abdominal segments are carinated in the dorsal median line, and 
the third, fourth, and fifth are armed with a posterior tooth; the first and 
second segments are notched posteriorly in the dorsal median line. The 
telson is channeled on the dorsum, and furnished with about four pairs of 
dorsal, but no marginal, spines; its tip is broken off and its armature thus 
obliterated. 
The third maxillipeds and legs are moderately tomentose. The second 
pair of legs are a little longer and slenderer than the first pair. The ischium 
and merus of the last three pairs are spinulose on their inferior margins. 
Length, 127 mm. ; length of carapace, including rostrum, 61 mm. ; height 
of carapace, 31 mm.; length of antennal scale, 19.5 mm. 
Station 3399. 1740 fathoms. 1 male. 
This species is nearly related to WV. patentissimus Bate, with which it agrees 
in nearly all the details of carine, etc. ; but it differs much from that species 
in its general form and proportions, the carapace being much longer in pro- 
portion to its height, and less convex along the dorsal line than in J. paten- 
tissimus. 'The rostrum, too, is armed with many more spines on its inferior 
