460 K. J. Budi — Mollusca of Cape HaUeras. 



lip a little below tlie suture, thus considerably shortening the aper- 

 ture. Some specimens have about four smootli, raised, rounded, 

 revolving threads on the interior of the aperture, wliich form, by 

 tlicir abrupt termination, conspicuous nodules within tlie margin of 

 tlie outer lip. Columelhi, nearly straight, and has, just within the 

 thin, free edge of the inner lip, a row of from four to six very minute, 

 white crenulations. Canal very short, narrow at its base, but sud- 

 denly widened by the abrupt, outward turning of the lip. 



Color of fresh specimens amber, with lighter tinted carina, and red- 

 brown edged aperture; some specimens are irregularly spotted with 

 red-brown. 



Length of a medium sized mature specimen, 5""" ; its breadth, 

 2111111. length of aperture, 1-75""" ; its breadth, -S""". A specimen of 

 the same length without the thickened lip, has an aperture 2'"'" long 

 and nearly 1""" broad. 



Very abundant, both living and dead, in 7 to 48 fathoms. 



Mr. W. H. Dall considers this shell identical with a species from 

 Florida to which he has given the name, melanltlca (MSS.), but 

 admits a varietal difference. 



Mangilia oxytata Bush. 



Report U. S. Com. Fish and Fisheries, p. 80, for 1883, 1885. ^" 



Plate XLV, figure ]. 



At station 2108, in 48 fathoms a single dead specimen (No. 35,395), 

 somewhat resembling the preceding, was taken. 



It consists of about eight whorls ; those of the spire strongly angu- 

 lated just below the middle, and ornamented with about nine rather 

 prominent, straight, transverse ribs, commencing at the periphery and 

 extending to the suture ; these, with their wide, concave interspaces, 

 are crossed by three rather strong, nearly smooth, rounded, equally 

 distant carina?, the third defining the suture. Smooth, oblong nod- 

 ules are formed by the intersection of these with the ribs, those on the 

 periphery being the most conspicuous, as the first carina is slightly 

 wider than the other two. The subsutural band is wide, slightly 

 concave, crossed by delicate, ex-curved, raised lines or riblets, extend- 

 ing from the suture to the median carina ; and by three or four fine, 

 slightly raised, equally distant, revolving threads. The nucleus is 

 large, semi-transparent, shining, of four and a half turns, with a 

 small, exceedingly prominent, decidedly upturned, a))ical whorl, which, 

 with the two following, is smooth and glassy ; the next two have a 



