66 TROCHUS. 



granose-lirate, usually with every second rib articulated with dots 

 of white or black or both ; whorls about 6, the upper ones nearly 

 flat, the penultimate and last convex, the former with 7 or 8 spiral 

 distinctly granose lirae, the last with about 18, of which the 7th 

 usually is upon the periphery, interstices finely obliquely striate ; 

 last whorl deflected anteriorly, rounded at the periphery ; base some- 

 what convex ; aperture oblique, small, contracted ; outer lip bearing 

 within a strong tooth above, and an inconspicuous rather acute 

 thread at the place of the periphery; basal lip expanded, curved, 

 slightly denticulate ; columella very oblique, slightly tortuous above 

 and very deeply entering, terminating below in a strong plicate, 

 tooth, and with a smooth margin, save for a small denticle im- 

 mediately above the basal tooth ; parietal tract wrinkled ; umbilicus 

 with a plicate-denticulate border. Alt. 10-12, diam. 12-15 mill. 



Australia, Port Jackson; Watson's Bay; New Caledonia; Viti Is. 



T. clanguloides WOOD. 2nd. Testaceo. suppl, t. 6, f. 39. FISCHER 

 Coq. Viv., p. 369, t. 113, f. 2. 



In the typical form, the 1st, 3d, 5th, 7th and 9th lirse, and one or 

 two upon the base are articulated with black. A tray of specimens 

 from the Viti Islands, received from the late Andrew Garrett, differ 

 in having only the 3d and 7th lirse, and one upon the base so marked. 

 I need not compare clanguloides with T. persouatus and its allies, 

 species with similar strongly developed teeth for the deeply enter- 

 ing columella of the present species at once separates it. 



T. ROBERTS: Pilsbry. PL 13, fig. 4-7. 



A form similar in color-pattern and sculpture to T. clanguloides, 

 but differing notably in the greater altitude, more turbinate form, 

 and greater development of the teeth ; in these characters it is like 

 T. stigmatarius, which is, however, quite different in coloration. The 

 spire is elevated conical, the apex tinged with orange ; the upper 

 whorls are nearly flat, separated by a linear suture, which becomes 

 more deeply impressed at the last whorl ; the body-whorl is slightly 

 convex, rounded at the periphery, deeply deflected and flattened 

 toward the aperture ; the base is rather flattened, about as in T. 

 clanguloides ; the sculpture consists of spiral series of closely set 

 rounded granules, the series or cinguli a little separated on the upper 

 surface, closer beneath ; these number 17 or 18 upon the last whorl, 

 the 7th being upon the periphery, just as in T. clanguloides ; the 

 interstices between lirse are finely obliquely and spirally striate, the 



