RIN3ICULA. 407 



K. CARON Hinds. PL 47, figs. 63, 64, 68. 



Shell ovate, acuminate, striated, shining ; whorls rounded, the last 

 with subtransverse, rounded distant striae. ; spire exserted ; aperture 

 subabbreviated, the lip corrugated. (Hinds'). 



Alt. 3'5, diam. 2'5 mill. 



Strait of Malacca, 17 ftns. (Hinds); Goat Island, Port Jackson, 

 Australia 10 fms., and Torres Strait (Brazier) ; Gwadar (Blanf.). 



R. caron HINDS., Zool. Voy. Sulphur, ii, p. 47, pi. 16, f. 15, 16, 

 1844; P. Z. S. 1844, p. 97. ANGAS, P. Z. S. 1871, p. 98. NEVILL, 

 Journ. Asiat. Soc. Beng. xliv, pt. 2, p. 101, 102, 1875. MORL., 

 Journ. de Conch. 1878, p. 121, pi. 5, f. 7. BRAZIER, Proc. Linn. 

 Soc. N. S. Wales, ii, p. 77. 



This species is perfectly distinct in all its characters from R. 

 acuta ; the right margin particularly is very different ; the distinct 

 development of the parietal tooth, the different texture and the stria- 

 tion are all distinguishing characters from R. acuta. 



R. ENCARPOFERENS Folin. PL 47, fig. 65. 



Shell minute, globose, white, sometimes subdiaphanous, shining, 

 spirally regularly sulcate; whorls 4, rapidly increasing, the last very 

 large, five-sixths the length of the shell; suture simple; aperture 

 elongate, the right margin strongly lipped, crenulated with rather 

 rounded lint, outside broadly extended over the last whorl, inside 

 tumid toward the median part; emarginate at base; left margin 

 strongly reflexed and thickened, strongly toothed within, outward- 

 ly irregularly crenulated (Folin}. 



Alt. 2-5, diam. 2'2 mill. (Folin). 



Alt. 3, diam. 2-5 mill. (Nev.~) 



Point of Pamalang, Batavia, and N. coast of Sava (Folin) ; Bala- 

 piti, Ceylon (Nevill). 



Ii. encarpoferens FOLIN, Les Fonds i, p. 66, pi. 6, f. 5, 1867-1871. 

 MORL., Journ. Conch. 1878, p. 121, pi. 5, f. 5. R. abbreviata 

 G. & H. NEVILL, Journ. Asiat. Soc. Beng. xliv, pt. 2, p. 102, 

 1875. 



R. CANALICULATA Folin. PL 47, fig. 69. 



Shell minute, ovate-globose, thick, solid, white, shining, lower 

 half most minutely transversely sulcate ; spire short, subacute ; 

 whorls 5, subconvex, rapidly increasing, separated by a rather deep 



