404 i:i\(,irri. A. 



the columella ; parietal tooth robust, continued as far as the poste- 

 rior angle of the aperture; labial callus wide, passing into the 

 siphonal sinus. Alt. 4, diam. 4 mill. (Old.). 



Hong Kong (Old.) ; Nagasaki (Lischke) ; Goat Island, Port Jack- 

 son and Cape York, N. Australia (Brazier). 



R. ardata OLD., Proc. Bost. Soc. N. H., vii, p. 325 ; Otia Conch., 

 p. 122. ANGAS, P. Z. S., 1871, p. 98. LISCHKE, Jap. Meeres- 

 Conch., ii, p. 78, pi. 5, f. 16, 17 ; iii, p. 59. MORL., Journ. de 

 Conch., 1878, p. 124, pi. 5, f. 9. BRAZIER, P. L. S. N. S. W., ii p. 

 78. 



Allied to R. caron and propinquans, but the spiral lines are closer. 

 The Australian localities are open to doubt until specimens have 

 been compared with the types. 



R. CEHLERTIANA Morlet. PI. 47, figs. 77, 78. 



Shell small, thin, globose, regularly and delicately striate ; whorls 

 4 to 5. convex, separated by a subcanaliculate suture ; spire short, 

 acute, subgradate ; aperture wide, the margins joined by a callus, 

 reaching up to the middle of the penultimate whorl ; columellar 

 margin arcuate, triplicate, the upper fold short, vertical, and form- 

 ing a right angle with the callus ; lower folds delicate, ascending, 

 contorted; columella granose-roughened at base; lip little arcuate, 

 subprominent in the middle, channelled above, thickened outside. 



Alt. 4-2, diam. 3'6 mill. (Mori.). 



China Sea (Morlet) ; Seas of Japan, 30-54 fms. (St. John). 



R. celertiana MORL., J. de C., 1880, p. 156, pi. 5, f. 4. 



Allied to R. canaliculata, but differs in its thinner, more twisted 

 folds, thinner lip and shell, and the weaker, less extended callus. 



R. MARIEI Morlet. Unfigured. 



Shell very minute, ventricose, elongated, nearly smooth, orna- 

 mented at base with 4-5 spiral strije ; whorls 4, convex, separated 

 by an impressed suture; lust whorl slightly more than half the 

 length of the shell, subangulate at base; spire elevated; aperture 

 narrow, margins joined by a thick callus; columellar margin arcu- 

 ate, having three equal and equidistant, converging folds ; lip nearly 

 rectilinear, thick, provided with a tooth-like median tubercle and a 

 basal fold below. Alt. 1$, diam. 1 mill. Var. minor, alt. 1. diam. 

 0-7 mill. (Mori.). 



Island of Nossi-be, near Madagascar (Folin). 



