488 A, E. Verrill— Catalogue of Marine Mollusca. 
Penultimate whorl with the subsutural and two median carine. Pre- 
ceding whorls without distinct carine, except the subsutural one, but 
with the curved, transverse, raised riblets well-developed. Nuclear 
whorls very small (surface eroded). Aperture narrow, angular ; 
canal short, slightly turned to the left; outer lip with a distinct, 
evenly rounded sinus below the subsutural carina, Columella slightly 
curved and flattened. 
Length, 2°20"; breadth, 90"; length of body-whorl, 1-40"; of 
aperture, "95". 
Off Martha’s Vineyard, station 892, in 487 fathoms, one specimen, 
—U. 8. Fish Com., 1880. 
Mangilia cerina Verrill. 
Pleurotoma cerinum Kurtz and Stimpson, Proc. Boston Soc. Nat. Hist., iv, p. 115, 
1851; Stimpson, Shells of New England, p. 49, pl. 2, fig. 2, 1851. 
Mangelia cerina Verrill, Amer. Journ. Sci., iii, p. 210, 1872; Verrill, Rep. Invert. 
Anim. Vineyard Sd., in Rep. U. S. Fish Com., i, p. 637, description, 432, (auth. 
ed. p. 343), 1874. 
This shell is easily distinguished by its slender form, with the 
whorls angularly shouldered, and having a wide, concave, subsutural 
band. The ribs are few, angular, thick, obtuse. 
The whole surface is covered by fine, spiral lines, 
minutely decussated by the lines of growth, Lip 
with a well-marked sinus below the suture, near the 
shoulder. Nucleus with the apical whorl regular, 
smooth, and very small, depressed ; the second whorl 
is crossed by fine riblets, then two spiral grooves ap- 
pear around the middle; on the third whorl there 
are three spiral grooves, and the riblets are more 
prominent, producing a decussated sculpture. On the 
fourth whorl the normal sculpture appears. 
This species was erroneously omitted from Binney’s 
edition of Gould’s Invertebrata. 

It is found near Newport, R. I, and in Long I. Sound, Vineyard 
Sound, Buzzard’s Bay, ete., in 3 to 12 fathoms. It extends south- 
ward to the South Carolina coast. On the New England coast it is 
a rare shell, only found in our warmest waters. 
The animal has not been examined. 
