132 PYRAMIDELLID.E. 



nel Isles, Ireland, west of Scotland, Aberdeenshire, and 

 Shetland may also be mentioned as localities. The 

 variety was taken at Tynemouth by Mr. Alder, in Ban- 

 try Bay by Mr. M f Andrew, and in St. Catherine's Bay, 

 Jersey, by the Rev. Mr. Norman. Mr. Searles Wood's 

 collection of Crag shells in the British Musenm contains 

 a specimen of the typical form. Its known distribution 

 in a living state beyond our seas is as follows : — Upper 

 Norway (M'Andrew); Bohuslan (coll. Loven in mus. 

 Stockh., 10-30 f., Malm and Lilljeborg); Loire-Infe- 

 rieure (Cailliaud); north coast of Spain, 30 f., Cape 

 Trafalgar, and Teneriffe (M f Andrew); Spezzia (J. Gr. J.). 

 According to Clark, the animal is lively, active, and 

 bold. He says that in some of his Exmouth specimens 

 the throat of the shell is grooved. I have failed to detect 

 this character in any of the specimens (at least 100) 

 which I have examined. The umbilicus is visible even 

 in the young. This species may be distinguished from 

 O. umbilicaris by its greater solidity, the periphery being 

 always keeled, the spire much longer, and the whorls 

 compressed instead of convex. Erom O. cono'ldea it 

 differs in its smaller size, pyramidal shape, wider base, 

 and in the throat or inside of the outer lip being usually 

 (if not invariably) smooth. 



12. O. conspi'cua *", Alder. 



0. eonspicv.a, Aid. in Trans. Tynes. Nat. Field Club, i. p. 359 ; F. & II. 

 iii. p. 263, pi. tcv. f. 0. 



Shell forming an elongated cone with rather a broad base, 

 solid, opaque, glossy and of a polished appearance : sculpture, 

 line and numerous, but irregular microscopical spiral striae, 

 and still more minute and close-set flexuous lines of growth ; 

 the periphery is slightly but distinctly keeled or anguiated, as 

 is also the base of each of the upper whorls : colour pale cho- 



* Remarkable. 



