STALK-EYED CRUSTACEA 459 



between the eye and the antenna;, another straighter spine 

 forms the latero-anterior angle ; there are two lateral spines 

 on the side of the carapace in front of the cervical groove. 

 The rostrum is large, and exceeds the subantennary lamina ; 

 it is wide at its base, flat and depressed above, and curved 

 upwards towards its extremity ; it has two spines on each- 

 side, one behind the other in front of the eye ; it is unarmed 

 below. The external maxillipedes are large. The legs of 

 the first pair are short, strong, and compressed ; their basal 

 joint is prolonged outwards in the form of a spine or 

 tooth ; the mobile finger is very hooked and pointed, it 

 folds upon the superior border of the next joint, and not 

 as in Crangon, on its anterior border. The legs of the 

 second pair are very long and thin, the other legs are 

 feeble and monodactyl. 



The abdomen is covered with rough prominences, 

 arranged longitudinally, resembling keels ; one is median. 

 The second, third, fourth, fifth, and sixth segment 

 terminates below and laterally in a strong spine. The 

 seventh segment is straight. 



Rangp:. — St. Kitts ; in deep water. 



2. Glyphocrang-on nobilis. 



GlypJiocrangou nobilis ... A. Milne Edwards. 



Distinguished from G. spiiiicanda by its form being 

 more thin, and by its rostrum being straight at its base, 

 more elongated, and being provided above with a small 

 median keel. 



The rough prominences of the carapace and of the 

 abdomen are more numerous ; they are on the hepatic 

 region, which is almost smooth in the other. 



The seventh segment of the abdomen, instead of being 

 straight, is curved upwards. 



Range. — Dominica; in deep water. 



