RISSOINA. 377 



turreted, last whorl with a basal spiral row of prominent granules ; 

 lip thickened. Length, 2'5 mill. 



Andaman Is. 



R. SCOLOPAX, Sou verb. PI. 56, fig. 66. 



Narrowly, longitudinally costate, costse subflexuous, ending below 

 in a narrow, nodose, spiral, basal rib, no spiral striae, white ; whorls 

 about 10, subconvex, with moderately impressed suture ; aperture 

 a little extended anteriorly, lip subacute. Length, 12 mill. 



Loyalty Group, New Caledonia. 



R. FUNICULATA, Souverb. PI. 56, fig. 69. 



White, with nearly straight longitudinal ribs and about equal 

 interspaces, terminating below in a spiral rib, and without spiral 

 striae ; lip varicose. Length, 6 mill. 



Ins. Art, New Caledonia. 



R. SUBFUNICULATA, Nevill. PL 56, fig. 64. 



Shell solid, opaque, whitish, with large, rounded, close longitu- 

 dinal ribs, and no spiral striae, base with a spiral rib and two lirae ; 

 whorls 9, somewhat convex, with deep, crenulated suture ; lip thick, 

 varicose, crenulated below. Length, 4 mill. 



Persian Gulf to Singapore. 



R. TURRICULA, Pease. PI. 56, fig. 63. 



Rather solid, shining, white, with flexuous, rather close, rounded 

 longitudinal ribs, the interstices lightly striate, base granulosely 

 spirally costate and bilirate; whorls 82, suture undulated ; colum- 

 ella truncate below, outer lip varicose. Leugth, 3 mill. 



Sandwich and Viti Is., Ceylon, Mauritius. 



Nevill has described a var. Ceylonica, which does not appear, 

 from the description, to possess distinctive features. 



R. PLICATULA, Gould. Pi. 56, fig. 62. 



Whitish, with about 15 straight, longitudinal ribs, crossed by 

 cut lines, and a spiral basal rib ; lip thickened. Length, 6 mill. 



Bonin and Loochoo Its., China, Indian Ocean. 



Weinkauff suspects that this should be united with R. plieata, A. 

 Ad. ; this may be so, but a comparison of figures of the two species 

 shows differences as great as are usually accepted for specific in this 

 group. 



