Crangon and Galathea. 



61 



Genus Crangon. 



For characters of genus, vide supra, p. 57. In addition, as minor characters, 

 the following are nearly general : — AntenniB long — more than twice length of 

 peduncle of antennte. Second pair of chelipeds as long as third, which are 

 moderately stout. 



GREY SHRIMP. 



Plate II. 



CRANGON VULGARIS — LIFE SIZE. 



9, External Maxilliped. 



r, Rostrum, and anterior portion of carapace. 



N.B. — In the main figure the artist has omitted the right-hand branchial spine. 



Crangon vulgaris. (Fabricius, not Owen or Dana.) 



Astacus Cranyon. Herbst. u., p. 57, t. xxix., fig. 3, 4 ; Penn. Brit. Zool., iv , 

 t. XV., fig. 30 ; Mliller, Zool. Dan., pi. civ., fig. 4-10, 



VOL. XXIV. K 



