284 



PAL.EMONID^E. 



DEC A POD A. 



MACROURA. 



PALJEMONIDJE. 



SOWEEBY'S HIPPOLYTE. 



Hippolyte spinus. 



Specific Character. Rostrum anteriorly truncate, extending backwards nearly 

 to the posterior margin of the carapace, deep, many-toothed above ; the teeth, on 

 the portion situated on the carapace, which are three or four, larger than those on 

 the exserted portion. Tooth of the scale of the external antennae terminal; 

 broad filament of the internal antennae bent upwards at right angles to the 

 peduncle. 



Cancer spinus, 

 Alphetts 



Hippolyte Sowerb&i, 



So WERE. Brit. Misc. t. xxi. 



LEACH, Edinb. Encyc. VII. 431. Trans, of Lin. Soc. 



XI. p. 347. Encyc. Brit. Supp. I. 421. 

 LEACH, Malac. Brit. t. xxxix. DESMAR. Consid. sur les 



Crust, p. 223, t. xxxix. f. 1. Enw. Hist, des Crust. 



II. p. 380. 



THE carapace in this species is furnished with a strong 

 and deep rostrum, the ridge of which rises almost at the 

 posterior edge, and has about four strong and large teeth 

 on that portion which belongs to the carapace, and several 

 smaller ones on the exserted portion, which decrease in 

 size towards the apex; the exserted portion is very deep, 

 terminating in a sharp tooth ; the inferior edge with two 



