70 TROCHUS. 



larger than the corresponding part in T. clanguloicles ; parietal 

 callous slightly wrinkled ; umbilicus border with only one or two 

 denticles. Alt. 12-14, diam. 11-12 mill. 



Philippines; TJpolu; Ins. Phoenix, Art, Neiv Caledonian Archijiel' 

 ago ; Guan, Marianne Archipelaffo ; Viti Is. 



Clanculus siigmatarius A. Ad., P. Z. S.,lS51,p. 161. — Fischer, 

 Coq. Viv., p. 217, t. 71, f. 4. 



A beautiful rose-dotted species, of which many sjiecimens collected 

 by Pease and by Garrett are before me. 



T. UNEDO A. Adams. PL 10, figs. 17, 18. 



Shell elate-conic, very solid, narrowly false-umbilicate, red or 

 reddish brown, dotted with black; rosy at apex; outlines of spire a 

 little concave toward the apex ; whorls about 7, nearly flat alcove, 

 sutures linear, impressed, last whorl descending anteriorly, encircled 

 by about 13 or 14 granose lirae every second one, or on some spec- 

 imens every one articulated with black dots ; the interstices finely 

 spirally and obliquely striate ; base convex ; aperture tetragonal, the 

 outer lip bearing within a strong tubercle above, and a few plicxe on 

 the outer and lower part ; columella short, oblique, with a very 

 slight fold above, very deeply entering the profound, extremely 

 narrow axial pit, and at the base terminating in a large squarish 

 trifid tooth ; parietal tract finely wrinkled ; umbilicus bounded by 

 a plicate rib. Alt. 12-16, diam. 11-15 mill. 



Ins. Art, Neiv Caledonian Archipelago (Montrouzier) ; Viti Is. 

 (Garrett.) 



This species diflTers from T. stigmatarius in the same way that that 

 form differs from T. clanguloides. It is higher, narrower, more acute 

 than stigmatarius ; the color is darker ; the lirae of the body-whorl 

 less numerous, and the umbilicus narrower. The microscopic spiral 

 lines in the inter-liral interstices also constitute a perfectly tangible 

 and characteristic difference. 



T. ceylanicus Nevill. PL 11, fig. 48. 



Shell small, conical, solid, whitish or yellowish, radiately striped 

 above with sepia, alutaceous or reddish brown, the stripes at the 

 jDeriphery frequently branching, and with additional stripes inter- 

 calated between them, all of which continue upon the base as narrow 

 rays, or are there broken into tessellations ; whorls 5 to 6, slightly 

 convex, spirally granose-lirate, the last bearing 12 or 13 lirse, the 

 upper six larger, separated by obli(|uely striate interstices about as 



