- >' \. 



K. BEMK \i:i\ \ i \. l''olin. PL 7n. 



Whitish. BubdlaphanoUfl, whorls flatly convex. >|iir:illv ciiiLrul 



Length. l'"> mill. 



New Caledonia. 

 \\. BOBU8TA, Dall. PI. 71, fi.irs. 7U, 77. 



Shell smooth, scarcely rimate, \\ if h impn -,.1 >uhin-: whorls 4- 

 ~>. .-lightly convex, purplish with whitish hlooin, with VTV line 

 spiral stria- particularly towards the l>ase. Length, ~> mill. 



. 1A nfidii />-. ; J'lnver Bay, E. Siberia. 



Dr. Dall calls the normal form var. J////-//////. so that that name 

 may he substituted in the event of robusta, Lea Itein^ recognized. 



Var. SCIPIO, Dall. Fig. 77. 



Shell more slender. Perhaps males, and the stouter ones females. 

 The occurrence of a certain number of intermediate specimens i- 

 mentioned. 



R. CERINELLA, Dall. PL 71, fig. 79. 



Narrowly rimate, smooth, not polished. Length, 3 mill. 



Behring Sea. 



Close to C. proxima, Alder, but differs in the absence of spiral 

 st nation and in having less truncate apex, and one less whorl. 



C. ALEUTICA, Dall. PL 71, fig. 78. 



Slightly umbilicated, smooth, with faint growth-lines, no spiral 

 sculpture, suture distinct, whorls moderately convex ; hmwnish. the 

 slightly expanded edge of the aperture blackish. Length, '-\'~> mill. 



Ale n fin n /s. 



More slender and smaller than ( '. mumfn. Totten, less slender 

 and without the sculpture of C. aculeus, Gould. 



R. KXII.IS, Try.n. PL 71, fig. 80. 



Whorls 6, convex, with well-marked suture, aperture small, sur- 

 face covered with slight revolving stria-, li-ht In-own. 



Length, 3'3 mill. 



N'/// Itinjn, f'i//., on salt-water | 



I;. STI.MI-X.M. Smith. PL 71, fig. 78. 



Whorls 7, convex, with deep suture, distinctly wrinkled by growth 

 lines, apex ohtuse. shell thin, dark In-own. Length, ">'7 mill. 



' Hjinrt, LniKJ /.i/illlil. A 



lam not ac<juaintel with tlii> sjM-cirs, of which I ien> 



occurred to the author. 



