STALK-EYED CRUSTACEA 501 



I. Pseudosquilla ciliata. 



Pscudosquilla ciliata . . . Miers, Brooks. 

 Pseudosquilla stylifera , . Von Martens. 



The postero-lateral angles of the fourth, fifth, and sixth 

 abdominal appendages end acutely in spines. The lateral 

 lobes of the last thoracic segment are bidentate. They 

 are found on the shore. The colour, red. 



Range. — St. Thomas, Cuba, Honolulu. 



3. Squilla. 



Sqiiilla . , . Fabricius, H. Milne Edwards, Brooks, 

 Miers, 



Rostrum without antero-lateral spines. Sixth ab- 

 dominal segment distinct. Hind body depressed and 

 wide. Dactyle of raptorial claw not dilated at base, but 

 usually armed with marginal spines. Primary marginal 

 spines of telson large, with more than four secondary 

 spines between the intermediate and the submedian 

 spines. 



Range. — Most seas. 



Synopsis of the Species. 



I, There are no ridges or large tubercles upon the 

 upper surface of the abdomen ; its last segment is one 

 and a half times as wide as long, rounded, and scarcely 

 toothed. 



A. There are five or six teeth upon the raptorial 

 claw. — (vS. vittata.) 



B. The last two rings of the abdomen are finely 

 granular. There are nine or ten teeth on raptorial 

 claw.— (6". scabricanda?) 



