112 STALK-EYED CRUSTACEA 



they terminate outside in a sharp ridge which extends 

 as far as the lateral angle. The antero-lateral edges 

 are cut into a great number of small teeth, and are 

 ornamented with short hairs. The external maxillipedes 

 have a very prominent crest along their whole length. 

 The first pair of legs is long and strong ; the arm has 

 behind two or three large compressed tubercles which 

 have hairs ; it has in front a sharp crest. There is one 

 toothed crest on the internal border of the hand ; the 

 external border is sharp and cut into four teeth ; two 

 crests ornament the superior border of the movable 

 finger; the fourth joint of the walking legs has crests 

 above and below. 



Range. — St. Vincent ; in deep water. 



5. Heterocrypta. 



Hcterocrypta .... Stimpson, A. Milne Edwards. 

 Cryptopodia (part) . . Gibbes. 



The carapace is wide, and its lateral angles extend 

 over the walking legs, without completely hiding them. 

 The pterygostomian and hepatic regions have a granular 

 crest almost parallel with the lateral edge. 



I. Heterocrypta granulata. 



Heterocrypta graiuilata . Stimpson, Milne Edwards. 

 Cryptopodia granulata . . Gibbes. 



The carapace is triangular, and very wide behind ; 

 the regions are slightly marked ; the branchial region 

 has an elevated and very finely granulated crest which 

 runs parallel with the antero-lateral edge as far as the 

 sides of the gastric region, where it becomes transverse ; 



