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 antennae 

 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 ot each of these joints. The second, 

 third, and fourth abdominal segments bear four spines each. The abdominal 

 pleurae 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. simiifera (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 ai'e wanting in M. erinacea, and M. spinifera. In the possession of 

 three pairs of gastric spines it agrees with M. spinifera, but differs from 31. 

 erinacea. 



Munidopsis villosa, sp. nov. 



The whole surface of the body and limbs is beset with setse, which arise 

 from low squamous tubercles and transverse rugge on the carapace, and from 

 the transverse ridges of the abdominal segments. The rostrum is triangular, 

 the distal half upturned, cylindrical, and pointed, the ]>roximal 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 one on the side of the 



