MUSEUM OF COMPARATIVE ZOOLOGY. 213 
Length, 215 mm.; carapace, 101 mm.; rostrum, 42 mm.; antennal scale, 
33 mm.; telson, 33 mm. 
Station 3353. 695 fathoms. 2 females. 
9. 4.8008, 1-000, tt 1 male. 
ft ob a Ode: > 408. 5% 3 females, 
‘8898... 1020... 3 females, 
Bl 3 males, 1 female. 
000 00 1 male, 1 female, 
Haliporus nereus, sp. nov. 
Integument membranaceous, Carapace lightly granulated. Rostrum about 
one third the length of the rest of the carapace, horizontal, armed with six 
teeth above, ciliated below. Median dorsal line of carapace carinate, with two 
teeth on the posterior half of the gastric region. The antennal, branchiostegian, 
and hepatic spines are present, besides one behind the branchiostegian, and 
another still farther back on the hind border of the cervical groove. Orbital 
region definitively bounded by an hepatic and a gastro-hepatie sulcus. The 
hindmost of the lateral spines of the carapace lies in the anterior angle of a 
triangular field enclosed by branches of the cervical groove ; from the infero- 
posterior angle of this triangle two carino run backward along the branchial 
area; the upper one ends at the postero-lateral margin of the carapace, the 
lower one meets the inferior submarginal carina of the branchial area before 
attaining the posterior border. These two carinw, with the submarginal ridge 
of the carapace, enclose a long oval area on each branchial region. Third to 
sixth abdominal segments carinated ; on the sixth segment the carina ends in 
a small tooth. Eyestalks about one half the length of the rostrum ; eyes large, 
black, much broader than their stalks. 
In the female there is a large process, covered with stiff hairs, and flat- 
tened on the inner side, developed from the base of the third pair of legs. 
Behind this process lies a pair of flat, setiferous sternal processes. Between 
the legs of the fourth pair there hangs in the median line a nearly vertical 
curtain-like partition, notched on the free lower margin, and flanked by two 
lower blunt setiferous tubercles. The sternum of the posterior thoracic seg- 
ment has a slightly elevated median longitudinal ridge, and a low transverse 
ridge at the posterior boundary of the segment. 
Length, 81 mm.; carapace, 31 mm.; rostrum, 8 mm. 
Station 3353. 695 fathoms. 1 female. 
Carod hOB Tare” 1 female. 
“QUAN. 1700. oe 2 females. 
its 199008. 1579.41 2 females. 
se Baer dAYeU 1 male. 
u 9400. Tage “ 2 females. 
m BOr ooo.” 1 female. 
« 3413. 1360 '" 1 male, 2 females. 
