ALPHEUS. Ill 



edge. The eggs, according to Mr. Thompson, are of a light 

 red-green colour. 



Crangon bispinosus, "Westw. WestwoocVs Shrimp. — Cara- 

 pace with two prominent spines, one behind the other ; and 

 on each side a row of flat blunt notches. 



Hastings (Mr. Hailstone). 



Fam. ALPHEIDJE, M. Edw. 



Antennas inserted on two rows, the inner above the outer. 

 Beak very small and flattened. Legs stout, and scarcely 

 ever showing traces of flabelliform appendage or palpus. 

 First pair of legs very stout and thick ; the three last pair 

 of legs always one-clawed. 



Gen. 39. ALPHEUS, Fabr. 



Carapace prolonged in the form of a hood over the eyes. 

 Beak small and sometimes wanting. Outer pedipalps more 

 or less slender and elongated, broad and somewhat foliaceous 

 at the end. Two first pairs of legs didactyle ; the first pair 

 strong, one of them much larger and stronger thau the 

 other; second pair weak and filiform, the wrist many- 

 jointed ; three last pairs of legs monodactyle. 



