110 HISTORY OF BRITISH CRUSTACEA. 



blue, set at equal distances along the median line of abdo- 

 men, each of them like a half ocellus with a black pupil. 

 An undulating line or macular band of azure crosses the 

 front of the thorax. The projection of the wrist of the 

 anterior foot on each side, like an angular elbow, gives a 

 peculiar look to this Crangon. 



The Rev. Mr. Gordon says this species is not uncommon 

 in the Moray Firth. The Eev. Alfred Norman informs me 

 that he dredged two specimens in Lamlash Bay, Isle of 

 Arran, in five fathoms water with a sandy ground. 



Crangon trispinosus, Hailst. Hailstone's Shrimp. — 

 Carapace with three spines on the thorax, one in the middle, 

 and one on each side. Sometimes one-and-a-half inch long. 



Hab. Hastings (Mr. Hailstone), where it was called "Pug 

 Shrimp," "Weymouth (Mr. Gosse). Mr. Gosse* describes 

 its manners as resembling those of its congeners, burrowing 

 in the sand, or rather sinking into it, by the rapid displace- 

 ment of the sand by means of the false feet. When alive, its 

 colour consists of a vast number of ruddy golden stars closely 

 set, interspersed with black and pale specks, on a pellucid 

 grey ground. On the fourth abdominal segment there is a 

 speck of pure opaque white in the median line near its hind 



* Ann. and Mag. Nat. Hist. 1853, p. 384. 



