182 BULLETIN OF THE 
Munidopsis agassizii, sp. nov. 
The carapace of this species is moderately convex, with a deep transverse 
depression across the anterior part of the cardiac area. The rostrum is long, 
slightly upturned, and armed near the middle with a pair of lateral spines. 
The gastric area has four pairs of spines, the anterior pair the largest. The 
cardiac area bears two or three pairs of spines. The lateral margins of the 
carapace carry from six to eight spines each, and there is a longitudinal series 
of small spines within the margin on the branchial area. A small spine is 
situated on the anterior margin between the eye and the antenna. The pos- 
terior border of the carapace is ornamented with six (in one specimen seven) 
spines. There are also several spines on the sides of the carapace below the 
epimeral suture. There is a very small spine over each eye. The antenne 
are shorter than the body, the first joint bears a long external spine, the second 
joint two lateral spines, the third joint two lateral spines and one superior. The 
chelipeds are long and slender, the merus and carpus have no long spines, the 
propodus carries four spines on the upper edge and several rudimentary spin- 
ules, the fingers are spinulose, their cutting edges straight and denticulated. 
The ambulatory appendages have spiny meri and carpi, the longest spines 
being one at the distal superior border of each of these joints. The second, 
third, and fourth abdominal segments bear four spines each. The abdominal 
pleuree are rounded. 
Length, 23 mm. ; length of carapace, 12.4 mm. ; breadth of carapace, 8 mm.; 
length of rostrum, 4.5 mm, 
Station 3389. 210 fathoms. 1 male, 1 female. 
This species bears a general resemblance to M. erinacea (A. M. Edw.) and 
M. spinifera (A. M. Edw.). It differs from both these in having a flatter 
carapace marked by a deeper transverse depression across the cardiac area, in 
having a larger number of spines on the sides of the carapace, and in the pres- 
ence of spines on the pterygostomian regions and a small but distinct spine 
over the eye. It also has strong spines on the superior edge of the hand 
which are wanting in M. erinacea and M. spinifera. In the possession of 
three pairs of gastric spines it agrees with M. spinifera, but differs from WV. 
erinaced. 
Munidopsis villosa, sp. nov. 
The whole surface of the body and limbs is beset with sete, which arise 
from low squamous tubercles and transverse rugee on the carapace, and from 
the transverse ridges of the abdominal segments. The rostrum is triangular, 
the distal half upturned, cylindrical, and pointed, the proximal half naked 
below and slightly carinated in the median line. A pair of short, stout, blunt 
spines on the gastric region. One spine at antero-lateral angle of the carapace, 
one on margin of the hepatic area, and a rudimentary oue on the side of the 
