A, EF. Verrill—Mollusca of the New England Coast. 419 
which is also found in many species of Plewrotomella. 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. 8. Fish Commission Party in 1874, 1875 and 1884. 
Bela tenuicostata G. 0. Sars. 
Moll. Arcticee Norvegiz, p. 237, pl. 17, figs. 1, a, 0, pl. 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 meas 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 XLIV, FIGURE 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 five; 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 reg- 
ular curve and joins the columella without a distinct notch; posteri- 
orly there is a distinct rounded groove within the aperture at the 
