SISTRUM. 191 



R. FUNicuLATA, Reeve. PI. 59, fig. 272. 



Bluish-white, ridges and tubercles black ; violaceous within. 

 Length, •? inch. 



Hab. unknown, 



R PARVA, Reeve. PL 59, fig. 274. 



Whitish ; nodules orange-color and black in alternate rows. 

 Length, -S-'G inch. 



Philippines. 



It is doubtful whether this species belongs here or in Peri- 

 sternia. I have not seen authentic or undoubted specimens. 



R. scABRA, Koch. 



Ovate fusiform, nodulous by decussating ribs and stride ; with 

 three brown-black zones ; aperture as long as the spire, coarctate, 

 with six equal teeth within the outer lip. 



Hab. unknoum. 



I do not know this species ; it has not been identified or 

 figured by subsequent authors. 



R. LiviDA, Reeve. PL 59, fig. 281. 



Chocolate-brown, variegated with darker color. 

 Length, 1 inch. 



Tsle of Negros, Philippines. 



Very like Reeve's Buc. bimucronatum. (which is a sj'n. of 

 R. ochrostoma), the principal diflference being, that in this 

 species, the rib forming the shoulder forms a single angle, instead 

 of being double as in the latter. It is possibly a mere variety. 



R. CHRYSOSTOMA. Desh. PL 59, figs. 283, 279, 280. 



Light brown or 3'ellowish : orange or violet within the aper- 

 ture. Length. -75 inch. 



Ceylon, Seychelles, Mauritius, Polynesia. 



Reeve has figured a different species (= B. hiconica) undej- 

 this name. I think that R. ozenneana, Crosse, (fig. 279), 

 and Mureu- Crossei^ Lienard (fig. 280), are merely varieties of 

 the same specific form, but I am unable to include (as Messrs. 

 G. and H, Nevill have done) Latirus gihbus^ Pease ; the latter ap- 

 pears to be a true Tnrbinelloid species. 



