PKOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 375 



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

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



Dredged by us off Massachusetts Baj- , 1877, station 34, in 160 fathoms ; 

 and off Newport, at stations 892 and 894, in 487 and 305 fathoms. 



Cingula turgida (Jeff.) Verrill. 



lUssoa turgida Jeffreys. — G. O. Sars, Moll. Eeg. Arct. Norv., p. 183, i)1.10, figs. 

 12 a, h. 



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

 umbilicus. Station 892, in 487 fathoms. 



Cingula Jan-Mayeni (Friele) Vewill. 



Eissoa Jan-Mayeni Friele, Nyt. Mag. Naturv., 1877 (auth. cop., p. 4, fig. 4). 

 Cingula Jan-Mayeni Verrill, Amer. Joum. Sci., xvii, p. 311, Aj)r., 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 Lawrence, 200 fathoms, but it had not hitherto been taken on the 

 i^ew England coast. 



Lepetella Verrill. 



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



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

 simple subcentral ajjex, not spiral. Animal much as in Lepeta, but with 

 distinct eyes. Odontophore tsenioglossate, 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 flat base and two terminal incurved denti- 

 cles ; outer laterals smaller, flattened, subtriangular plates. 



Lepetella tubicola Verrill & Smith. 

 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 simjile. Sculpture 

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

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

 3.75'"™; breadth, 3"^'"; height, 2'"™. On inside of old tubes of Hyalinoecia 

 artifex V. ; tweniy-seven were taken from one tube. Stations 869, 192 

 fathoms, and 894, 365 fathoms. 



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

 CerUldopsis cosUdatus Whiteaves {non Moller). 



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

 subulate; spire regularly tapering to the acute apex; whorls nine, 

 slightly convex, witli a prominent, nodulous, revolving 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 



