HIPPOLYTE. 
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two toes, bat 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 antennse ending in two many-jointed filaments, 
one of which is broad and excavated on its low 7 er surface. 
Abdomen often abruptly bent. Beak very large, fixed, 
compressed, and generally strongly toothed. Anterior legs 
with tw r o toes ; second pair of legs with the wrist many 
jointed. 
Hippolyte spinus.^ Sowerbys Shrimp. (Plate IX. fig. 1.) 
— Base of the beak produced behind into a crest, wdiich 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 spinus, Sowerby ; Hippolyte Sowerbsei, Leach. 
