PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 375 



as a thiu layer of enamel. Umbilicus a small but distinct chink. 

 Length, 2.75"""'; breadth, 1.80""". Animal unknown. 



Dredged by us off Massachusetts Bay, 1877, station 34, in IGO fathoms ; 

 and off ISTewport, at stations 892 and 804, in 487 and 365 fathoms. 



Ciugula turgida (Jeff. ) Venill. 



lUssoa turgida Jeffreys. — G. O. Sars, Moll. Reg. Arct. Norv., p. 183, pi. 10, figs. 

 12 a, b. 



A very small, white species, with smooth, rounded whorls and distinct 

 umbilicus. Station 892, in 487 fathoms. 



Cingiila Jan-Mayeni (Friele) Ve*rill. 



llisaou Jan-Maycni Friele, Nyt. Mag. Naturv., 1877 (auth. cop., p. 4, iig. 4). 

 Cingula Jan-Mayeni YevTill, Ainer. Journ. Sci., xvii, p. 311, Apr., 1879. 



This species was common at stations 891 to 894, in 238 to 500 fathoms. 

 A single specimen occurred at station 880. It was originally from off" 

 Greenland, 70 to 300 fathoms. Whiteaves has dredged it in the Gulf of 

 Saint LawrcJnce, 200 fathoms, but it had not hitherto been taken on the 

 Xew Enaland coast. 



'to' 



Lepetella Ven-ill. 



Amer. Journ. Sci., xx, p. 396, Nov., 18H0. 



Shell small, smooth, oval or oblong, limpet-shaped, conical, with a 

 simple subcentral apex, not spiral. xVnimal much as in Lepcta^ but with 

 distinct eyes. Odontophore tanioglossate, with seven regular rows of 

 teeth; median tooth a rather broad, thin plate, with incurved, smooth, 

 convex edge, narrower than the base ; inner lateral tooth stout, with a 

 broad base and a single incurved, terminal denticle; second lateral 

 tooth larger, with a broader Hat base and two terminal incurved denti- 

 cles ; outer laterals smaller, flattened, subtriangular i)lates. 



Lepetella tubicola Verrill &, Smitli. 

 Loc. cit., p. 396, 1880. 



Shell thin, white, smooth, conical, with the apex acute and nearly 

 central ; aperture broad-elliptical, oblong, or subcircular, usually more 

 or less warped, owing to its habitat ; edge thin and simple. Sculpture 

 none, lines of growth slight, outer surface dull white ; inner surface 

 smooth, Avith the pallial markings faint. Length of largest specimens, 

 3.75'""'; breadth, 3'""'; height, 2"'". On inside of old twhoi^ of Hyalhmcia 

 artifcjc V. ; tweury-seven were taken from one tube. Stations 809, 192 

 fathoms, and 894, 3G5 fathoms. 



Lovenella "Whiteavesii Verrill, loc. cit., p. 396, 1880. 

 Cer'dkiopsis cosiulatiis Wkiteaves (won Moller). 



A small and elegant species, allied to L. metula (Loven). Elongated, 

 sul)ulate; spire regularly tapering to the acute apex; whorls nine, 

 slightly convex, with a i)rominent, nodulous, revohing carina below the 

 middle, and a smaller one just below the suture; on the body- whorl 

 another less elevated and scarcely nodose carina revolves in line with 



