346 RissoiA. 



C. L^vis, DeKay. PI 71, fig. 75. 



Shell moderately solid, with 5 very convex whorls, separated by 

 a deep suture, smooth, white in adult specimens, corneous in the 

 young ; aperture small, umbilicus distinct and rather large. 



Length, 5 mill. 



New York, Connecticut. 



This poorly described and figured species has not been recog- 

 nized ; it may be identical with the preceding one, or the following, 



R. MiNUTA, Totten. PI. 71, fig. 74. 



Thin, smoothish, apex obtuse, suture well-impressed, narrowly 

 umbilicated, yellowish-brown to ferruginous ; whorls 5, convex, 

 very finely striate. Length, 3*75 mill. 



Neiv England, Florida. 

 R. Georgiana, Pfeffer. PL 71, fig. 2. 



Imperforate, shining, smooth, or microscopically striate with 

 growth-lines, whitish, under a thin greyish straw-colored epidermis; 

 whorls 5, flattened convex, with moderately impressed suture; 

 peristome continuous. Length, 2'4-2'8 mill. 



South Georgia Isl. 



Unfigured and Undetermined Species of Cingula. 



R. Pj:tiningensis, Gould. (PI. 71, fig. 82.) = Paludestrina. 



R. MODESTA, H. C. Lea. ■= Assiminea. 



R. Sandersoni, Verrill. Cape Hatteras, N. C. 



R. coNiCA, C. coNCiNNA, R. soLiDA, C. B. Ad. Jamaica. 



R. Verrilli, and R. Islandic^, Friele. (Desc. inaccessible to 

 me). Arctic Ocean. 



R. PUNCTATO-STRIATA, Teuison Woods. Tasmania. 



R. ATOMARiA, Gould. China Sea. 



R. ScHLOSSERiANA, Brusina. = Leachia elongata, Phil. 



R. FILOSA, Brusina. Suez. 



R. PAUPERCULA, C. B. Ad. = Diala. 



Section Onoba, H. and A. Adams, 1854. 



R. STRIATA, Mtg. PI. 63, figs. 71, 73. 



Rather solid, opaque, scarcely shining, whitish or yellowish, with 

 two chestnut bands ; whorls 6-7, moderately convex, si)irally 

 closely striate, upper portion of whorls shortly longitudinally jili- 

 cate ; lip, in the adult, slightly varicose externally. 



Length, 4 mill. 



