184 BULLETIN OF THE 
Munidopsis sericea, sp. nov. 
The whole surface of the body and limbs is covered with a silky pubes- 
cence. The rostrum is long, curved gently upward, convex above, but not 
carinated, armed with a prominent spine on each side near the middle, and 
with three more minute spinules near the base. Gastric region swollen, armed 
with two conical spines and ten or twelve small spinuloid tubercles. The 
cardiac region has a prominent transverse ridge near the centre, in front of 
which is a deep depression separating it from the gastric region; the ridge is 
armed with a pair of short spinules. There is a small spine on the anterior 
border between the eye and the antenna, a large one at the antero-external 
angle, three on the border of each hepatic region (the middle of one of these is 
the largest), and one small one on the border of each branchial region just 
behind the cervical suture; there are besides about ten sharp tubercles on 
each branchial area, and five or six pairs of spinules on the posterior margin of 
the carapace. Pterygostomian regions granulated. There isa pair of spines on 
the second, third, aud fourth abdominal segments; besides these there are sev- 
eral small spinules on the terga and pleurz of these segments; the pleure 
are rather narrow, with rounded lateral angles. The chelipeds are wanting in 
the unique specimen. The ambulatory appendages are spinulose, the spinules 
of the dactyli restricted to the hind margin. The eye is provided with a very 
minute spine. The antenne are rather longer than the body, the basal joint 
has a short external spine, a longer one at the lower internal angle, and a 
small one at a higher level on the inner side, The latter spine shows, when 
the animal is viewed from above, between the eyestalk and the antenna. The 
subsequent segments of the antenna are armed as usual in this genus, 
Length, 39 mm.; length of carapace, 12 mm, ; length of rostrum, 8 mm. ; 
breadth of carapace, 12 mm. 
Station 3394. 511 fathoms. 1 male. 
Munidopsis margarita, sp. nov. 
In this species the rostrum has a gentle upward curve near the tip ; it is 
carinate above, and minutely spinulous on the margins. The surface of the 
carapace is rough with squamous tubercles and forward-pointed spines. The 
gastric and cardiac regions are prominent, and separated from one another by 
a deep depression ; a pair of spines on the gastric, and one spine on the cardiac 
region, attain a special prominence. A long sharp spine outside the eye forms 
the outer wall of a well marked orbit. There are eight spines on each lateral 
margin, six on the posterior (including those at the postero-lateral angles). 
The branchial areas are iridescent. Second abdominal segment: the anterior 
transverse ridge, which is broken down in the -centre, bears on each side a 
prominent hooked spine, which is enlarged at the base and denticulated on the 
outer margin ; the posterior ridge is furnished with three hooked spines ; the 
