HIPPOLYTE. 117 



two toes, but slender. The three last pairs always only 

 one-clawed. 



Body laterally compressed and rounded above. This 

 family abounds in species, some of which are pre-eminent 

 for the great length of their fore legs and their large size. 

 The species referred to are found in the tropical seas. 



Gen. 43. HIPPOLYTE, Leach. 



Inner antennae ending in two many-jointed filaments, 

 one of which is broad and excavated on its lower surface. 

 Abdomen . often abruptly bent. Beak very large, fixed, 

 compressed, and generally strongly toothed. Anterior legs 

 with two toes ; second pair of legs with the wrist many 

 jointed. 



Hippolyte spinus.* Sowerhy s Shrimp. (Plate IX. fig. 1.) 

 — Base of the beak produced behind into a crest, which is 

 armed with four or five large teeth; the beak itself with 

 many small teeth above. Abdomen very gibbous, its third 

 ring prolonged like a beak over the next joint. Length 

 nearly two inches. 



This species is found abundantly in the Arctic Seas. 



* Cancer spiuus, Sowerby ; Hippolyte Sowerbrci, Leach. 



