A. E. Verrill — Mollusca of the New -England Coast. 241 



Cingula Sanderson! Verrill, sp. nov. 



Shell moderately large for the genus, thin, fragile, long-ovate, with 

 a rather tall, somewhat turreted, acute spire. Whorls six to seven, 

 strongly and evenly convex, separated by a deep, impressed, simple 

 suture. Body-whorl large, rather swollen, well rounded, and con- 

 stituting more than one-half the length of the shell. Nuclear whorl 

 small, smooth, somewhat prominent, regularly coiled. Base rather 

 strongly produced, destitute of an umbilicus, but sometimes with a 

 slight chink, produced by the everted edge of the inner lip. Aperture 

 pretty regularly ovate, rather broad, obtusely rounded in front, and 

 with the posterior end narrowed and sometimes forming a slight 

 sutural sinus ; outer lip thin and regularly curved ; inner lip con- 

 tinuous, usually with a thin, free edge along the body-whorl. The 

 sculpture consists of very fine, close revolving lines, visible with a 

 lens, and of still finer, but usually distinct lines of growth, which 

 interrupt, more or less, the spiral lines. 



Color white in our specimens, all of which appear to have been 

 dead when dredged. 



Length, 4"""; breadth, 2""" ; length of body- whorl, 2-5"""; length 

 of aperture, rS'"'". A large specimen, with broken apex, is 2'7'"™ 

 broad; length of body-whorl 3-5""". Most of the specimens are 

 smaller than those measured, and some are more slender in propoi"- 

 tion. 



Station 2109, off Cape Hatteras, in 142 fathoms, numerous speci- 

 mens (No. 35,447). 



In form, this species resembles C. turrlcida Lea, but the latter is 

 described and figured as smooth and umbilicated. It is evidently 

 allied to C. aculeus, but differs in its stouter form, deeper suture, 

 and much finer sculpture. The sculpture is somewhat similar to 

 that of C. leptalea, but the latter is very different in the form of the 

 shell and aperture. Dedicated to Mr. Sanderson Smith, by whom 

 it was dredged. 



Rotella cryptospira Verriii, sp. nov. 



Shell minute, strongly depressed, with the spire not at all elevated 

 and mostly concealed by the overlap] ng of the last whorl. Surface 

 smooth and polished, without any lines of growth. The last whorl 

 constitutes nearly the entire shell, overlaping and nearly concealing 

 the previous whorls, but sometimes leaving a slight central depression 

 in which the minute spire is imperfectly visible. Base flattened or 

 but slightly convex ; the umbilical region is completely covered by a 



