PHOLAS.— Plate XII. 



Desuaye^. ? 



Hah. Port Essiiigtoii. 



The specimens in the British Museum are imbedded 

 in a very hard blackish wood, tlie boring having been 

 made across the srraiu. 



Species 51. (Mus. Brit.) 



I'holas kalcata. Pho. testd brevi, suhcuneifoiini, 

 niniUi serrafo cliiisd {claiisA ?) parte anticd serrato- 



striatd, parte pogtica propn caruiUm conrentrice 

 liratd, prope terminum keriijatd ; lamuul dorsali 

 cuneatd, medio divisd. 



The hooked Pholas. Shell short, subcuneiform, 

 divided by a serrated canal (closed ?) anterior 

 part serrato-striated, posterior part near the 

 canal concentrically lirated ; smooth near the end, 

 dorsal plate cuneated, divided in the niiddle. 



Gray. MS. Brit. Mus. 



Hub. Hudson's Bay. 



A rather dubious little species. 



