;rooLOGy.— ^SHRIMP. 541 



the species last mentioned, formed the whole of the 

 produce of his trawling and fishing, in animals of this 

 kind, during his stay in the vicinity of Spitzbergen. 

 A small species of Gadus, nearly allied to the G. 

 carbonarius, was found by myself among the arctic 

 ice, in the parallel of 78° N* 



MuLLUS hai-hatus ? — Taken by a seaman out of 

 the mouth of a seal near Spitzbergen. The body 

 was wholly red ; the length about 12 inches. It 

 was boiled for our officers, and proved an excellent 

 dish. 



Class ARTICULATA. 



Gammarus arctkus (Leach). — The characters 

 of this animal (PI. XVI. Fig. 14), I have been fa- 

 voured with from Dr Leach. They are as follow : 

 " G. oculis sublunatis ; pedum pari tertio, secundo 

 " majori." The actions of this species suggest as a fa- 

 miliar name, the mountebank shrimp. It frequent- 



• The only specimen I got of this fish^ v/as put into the 

 liands of Ivir Williani SAvainson, who considered it as a variety 

 of the coal-fisli ; though, from the contraction and change of 

 colour produced, by the spirit in which it was preserved, the 

 lateral line, so essential in the determination of the species, 

 could not be traced. The number- of rays in each of the fins 

 of this specimen, was as follows: First dorsal 13, second doi". 

 sal 18, third dorsal 20; first anal 22, second anal 20, &c. The 

 thud ray of the ventral fin v.as lengthened into a subulate 

 point; and the hinder dorsal fin rounded, peculiarities not no- 

 ticed by any author who liac described G. Carbojaarius. 



