3/H) RISSOIA. 



K. CINGULATA, Phil. PL 68, fig. 93. 



Somewhat solid, translucent ; whorls 6, convex, with linear su- 

 ture, spirally lirate, with wider interspaces, 10 lirse on the last 

 whorl ; lip simple, sharp ; yellowish brown. Length, 4 mill. 



Sicily. 

 R. TENERA, Phil. PI. 68, fig. 94. 



Thin, pellucid, brownish white ; whorls 5, with deep suture, and 

 strong spiral ridges, of which there are 9-10 on the last whorl, the 

 wider interstices slightly longitudinally striated ; lip simple, den- 

 tate by the ridges. Length, 2 mill. 



Near Syracuse, Sicily. 



R. CRISTALLINULA, Manzoni. PI. 65, fig. 7. 



Vitreous, translucent, shining ; whorls 5, with margined suture, 

 the last numerously spirally striate ; lip a little thickened, sub- 

 produced ; subperforate. Length, 1-5 mill. 



Canary Is. 

 R. CALLOSA, Manzoni. PL 65, fig. 6. 



Imperforate, solid, opaque, whitish, with short spire and indis- 

 tinct, submargined suture ; whorls 5, closely spirally striate, last 

 whorl inflated ; lip simple, rather thick. Length, 1*6 mill. 



Canary Is., Madeira. 



R. depicta, Manzoni (= R. punctifera, Watson Ms.) is a syn- 

 onym. 



R. LAURJE, Folin. PL 71, fig. 99. 



Polished, crystalline, smooth, obscurely spirally lirate at the 

 periphery and base ; whorls 8, slightly convex, with shallow suture ; 

 aperture with thickened lip, spirally lirate within. Length, 2 mill. 



Panama. 



Unfigured and Undetermined Species. 



R. DELICATA, Phil. Red Sea. 



R. LIGATA, Gould. Hong Kong. 



R. PROCERA, R. SUBULINA, R, K!,K< ! ANTULA, R. MUNDULA, R. 

 SPIRATA, R. PATULA, R. MIRIFK'A, R. LUCIDA, R. KG K KG I A, all of 



Arthur Adams. Japan. 



R. ALBOLIK A I'A, Carp. Cape St. Lucas, L. California. 



R. TURRICULA, H. C. Lea. So. Carolina. 



This species has not been identified. 



