CRUSTACEA. 485 



larger size tlian described from the Mediterranean. One, not the 

 largest measuring three inches from snout to tail, with antennae 

 of the length of five inches." 



This species has not been noticed in BelVs Crustacea. 



ALPJSEABM. 



GrENUs, Alphetjs. — Edwards. 

 Carapace covering the eyes. Second pair of antennae having 

 two branches. First pair of legs being large, chelate. Second 

 pair long, slender, multarticulate, minutely chelate. Three 

 posterior pairs simple. 



From the manner in which the anterior margin of the 

 carapace covers the eye, it is evident that all the members of this 

 genus dwell under the surface of the sea bottom. 

 AxPHEirs RUBER. — Edwards, Hist, des Crust., t. ii, p. 231 ; Bell, 

 Stalk-eyed Crust, p. 271. 

 The late Dr. Cocks, of Falmouth, took the fij?st specimen of 

 this species on our coast, as recorded by Bell. It has since been 

 taken off the Dodman in thirty fathoms of water. Also in 

 Plymouth sound. Its more general habitat is on stony ground 

 in about thirty fathoms of water. 



Its colour, salmon, and red at the joints. 

 Alpheus Edwardsii. — We have taken several specimens of this 

 species off the Dodman on stony ground, in about 30 fathoms 

 of water. 

 I am inclined to believe that the habitat was shallower than 

 recorded. 



Genus, Typton. — Oosta. 

 ,, Ponton ella. — Seller. 

 Eyes exposed beyond the carapace. First pair of legs equal 

 slender, long, chelate. Second pair large, unequal, chelate. 

 TYPTOisr spongiosum. — Spence Bate. Report of Bevon and Cornish 

 Fauna, Brit. Assoc., 1867,^. 283. 

 Several specimens of this species were found inhabiting a 

 sponge in about four fathoms of water, on stony ground off 

 Plymouth sound. 



The Ed. Merle Norman, Annals, Nat, Hist., considers this 

 species to be identical with Costah species from the Mediter- 

 ranean. 



