128 CANTHARIDUS. , 



Dr. Fischer, from whom my information concerning this species 

 is derived, says : I have not seen this species. It is not in the 

 collection of the Museum. 



M. Kiener has indentified this shell with Trochus indlstinctus 

 Wood. It differs from the type of Wood by the more conical form, 

 fewer and shallower concentric grooves. There is at the Museum a 

 series of Trochids collected by Peron and Lesueur on the Australian 

 coast, which represent exactly the figure of Wood. Their s])iral 

 line are salient and subgranose ; the whorls of the spire ])roject at 

 the lower part. The figure of Philippi cited approaches that of 

 Kiener ; its whorls are smooth, the grooves shallow. The coloration 

 of the umbilical region is a little different. Reeve's figure seems to 

 belong to another species; it is narrower, less carinated, and the 

 inter-liral spaces are striated. In conclusion, the T. indistinctus of 

 Kiener and of Philippi seems to us to be a species different from that 

 of Wood, and we propose to name it T. erognhis. (Fischer.) 

 C. INDISTINCTUS Wood. PL 34. fig. 4. 



This form is known to me only by the remarks of Fischer (supra, 

 under T. erogatus) and the figure in the Index Testaceologicus, pL 

 6, fig. 41. The latter is copied on my plate. It is said to be from 

 Australia. 

 C. GiLiBERTi Montrouzier. PI. 45, figs. 87, 38. 



Shell imperforate, conic-elongate, acute; whorls 10-11, plan uhite,. 

 greenish, with a few whitish radiating flexuous irregular streaks, or 

 punctulate with white, obliquely very finely striate, spirally lirate,. 

 the lirse delicate, 15 to 16 on the j)en ultimate whorl, the two lower 

 ones wide, prominent ; last whorl carinated, somewhat depressed 

 above, convex beneath and lO-lirate, sometimes with intercalated 

 lirulse. Aperture subquadrate. lip simple, greenish, basal margin 

 arcuate ; columella straight, short, with a parallel groove outside, 

 base truncate. Alt. 13, diam. 7^^ mill. (Fischer.) 



Island of Art, N. Caledonian Archipelago.. 

 T. gilberti Montr., in Fischer, Journ. de Conchyl., 1878, p. 207. 

 — T. giliberti Fischer, Coq. Viv., p. 401, t. 119, f. 2. 



A species allied to T. fournieri Crosse, differing in the larger size, . 

 more numerous whorls, more salient spiral linie and more carinated 

 body-whorl. The two lower lime of each whorl form a strong carina. 

 The truncation of the base of the columella is very distinct, while it 

 is slight or wholly wanting in T. fournieri. M. Souverbie informs 

 me that it was by an error that this species was named gilberti; it 

 should he cviWQii giliberti. (Fischer.) 



