A. K Verrill — Mollusca of the Reio England Coast. 419 



which is also found in many species of Pleurotomella. The charac- 

 ter of the nucleus and the presence of an operculum shows that this is 

 a true Bela. 



This shell has been named in honor of Mr. J. H. Blake, who was a 

 member of the U. S. Fish Commission Party in 1874, 1875 and 1884. 



Bela tenuicostata G. o. Sars. 



iloll. Arctica3 Nonregia?., p. 237, pi. 17, figs. 1, a, h, pi. ix, fig. 6 (dentition), 1878. 



This species occurred living at station 2076, in 906 fathoms ; sta- 

 tion 2084, in 1,290 fathoms, one living specimen (No. 35,179); and at 

 station 2115, in 843 fathoms, one living example (No. 35,595). 



These appear to be in all respects like the European form, which 

 is, apparently, a valid species, belonging to the deep sea fauna. The 

 form referred by me in the first Catalogue Marine Mollusca (these 

 Trans., v, p. 481), to this species, which was then regarded by me as a 

 variety of B. decussata, is coarser in sculpture, and is doubtless a 

 variety of the latter. 



The true B. tenuicostata now recorded is remarkable for its deli- 

 cate texture and fine reticulated sculpture. 



Admete nodosa Verrill and Smith, sp. nov. 



Plate XLIY, fi&ure 9. 

 Shell rather small, thick and solid, short, stout, with coarsely 

 ribbed and rudely nodulous, convex whorls. The spire is short and 

 rapidly tapered, with the apex apparently blunt, but eroded in both 

 of our specimens. Whorls apparently four to live ; the last two 

 whorls are strongly convex with a well impressed suture. The last 

 whorl is surrounded by five rows of rather large and coarse, promi- 

 nent nodules, joined together by low, revolving ridges and situated 

 upon about twelve, broad, low, rounded or wave-like ribs. On the 

 penultimate whorl the ribs are more prominent and continue across 

 the whorl and bear about three rows of nodules. The aperture is 

 short, broad-ovate, more acute behind than in front ; the canal is 

 very short and broad flaring, widely opened and twisted a little to 

 the left, but does not cause any interruption or constriction of the 

 outer lip which is regularly arched, forming nearly a semi-circle and 

 has a thin flaring edge which is strongly thickened a short distance 

 within the aperture, anteriorly the outer lip continues round in a reo-- 

 ular curve and joins the columella without a distinct notch; posteri- 

 orly there is a distinct rounded groove within the aperture at the 



