RissoiA. 337 



R. PUNCTURA, Mtg. PI. 63, fig 67. 



Imperforate, semipellueid, light brownish, Avith a chestnut stripe 

 outside the aperture ; embryonal whorls 2, punctate, normal whoi'ls 



6, convex, with deep suture, Avith numerous, close ribs, and spiral 

 lirse ; outer lip varicose. Length, 3 mill. 



Europe, Teneriffe. 

 It is R. text'dis, Loven, R. jnindarata, Macgill., B. insenghce, Cal- 

 cara, JR. striatissima, Rayn. 



R. PARVULA, Jefireys. PI. m, fig. 26. 



Imperforate, somewhat solid, subtranslucent, scarcely shining; 

 whorls 4, convex, longitudinally costate, ribs evanescent at the pe- 

 riphery, slightly spirally lirate, suture distinct but not deep; lip 

 thin, smooth within. Length, 2 mill. 



Portugal. 



Probably not adult. 



R. Macaxdrewi, Mauzoni. PI. 63, fig. 68. 



Imperforate, solid, yellowish chestnut; whorls 6, turreted or 

 round-shouldered, with close, large, longitudinal ribs, rendered nod- 

 ulous by spiral impressed lines ; lip duplicate, the outer one ex- 

 panded, with fimbriated edge. Length, 2*5 mill. 



Canary Is. 



Watson has described a variety spreta. 



R. Watsoni, Schwartz. PI. 64, fig. 89. 



Imperforate, thin, translucent, shining, white, with chestnut ma- 

 culations on the shoulder, between the ribs, with close strong spiral 

 ribs, and longitudinal ones distinct on the shoulder only ; whorls 

 42 , gradate, subscalar, with flattened shoulder to an angle, suture 

 rather decj) ; lip a little thickened externally. Length, 2 mill. 



Madeira. 

 R. AuBERiANA, d'Orb. PI. 68, fig. 85. 



Imperforate, thin, white, with brownish maculations, with nu- 

 merous, thin, longitudinal and spiral costse ; whorls 6, convex, with 

 sloping shoulder defined by an angle; lip thickened. 



Length, To mill. 



West Indies. 

 R. Zetlandica, Mtg. PI. 63, fig. 86. 



Imperforate, solid, opaque, wliitish; cancellated and almost mu- 

 ricated by subequal longitudinal and spiral distant lirse ; avIiov 



7, angularly sliouldered above, suture deep, longitudinal ^»(^p[ti\]!^ ' c y^ 



22 /:^\;' j^ ;,••. ,<1, 



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