124 



CANTHARIDUS. 



iired by 7 to 8 spiral stride and incremental lines ; last whorl obtusely 

 angular at the peri2:)hery, rather convex beneath, slightly impressed 

 in the region of the umbilicus; aperture subcircular-quadrate irides- 

 cent within, lightly grooved; lip within a trifle thickened whitish, 

 narrowly edged Avith black ; columella slightly arcuate, thickened, 

 ■covering the perforation. 



Alt. 14*, diam. 10^ mill. ; alt. 9, diam. 7 mill. (Smith.) 



Neiv Zealand. 



T. (Cantharidus) Huttonli K. A. Smith, Journ. Linn. Soc. London, 

 xii (Zoology), p. 558, t. 30, f. 20 (1876).— Hutton, Manual N. Z. 

 Moll., 1880, p. 100. — Gibbula plumbea Hutton, Journ. de ConchyL, 

 1878, p. 33 (teste Hutton, Manual N. Z. Moll, p. 100).— Cantharidus 

 tenebrosus Ad. var., Hutton, Proc. Linn. Soc. N. S. Wales, ix (1884), 

 p. 862 ; Trans. N. Z. Inst., xiv, t. 7, f. l. (Dentition.) 



Care must be taken not to confound this species w'ith one or two 

 otliers which are found from the same locality. C. tenebrosus, 

 described by A. Adams is a narrower and more coarsely sulcated 

 species than the present ; and a second species (at present undescribed) 

 is closely allied ; it is umbilicated more broadly, spirally sulcated, 

 and not so dark in color, being of a pnle purplish tint with the 

 spiral lirie between the sulcations of a darker tint. (Smith.) 

 C. PURPURATUS Martyn. PL 45, fig. 44. 



Shell imperforate, acutely conical ; whorls 8, somewhat convex, 

 separated by slightly inipressed sutures, the first reddish-green, the ' 

 remainder whitish, ornamented with rosy oblique streaks, spirally 

 cingulate, cinguli flat, 5 on the penultimate whorl, the interstices nar- 

 row, obliquely lamellose-striate ; last whorl subangular, convex 

 beneath, concentrically lirate, articulated with white and purplish ; 

 apenture subtrapezoidal, sulcate within ; lip thin ; columella nearly 

 vertical, columellar callous thin, narrow. 



Alt. 22, diam. 16 mill. (Fischer.) 



Anckland to Bank's Peninsula, N. Z. 



Lima.v, purpuratus Martyn, Univ. Conch., t. 68 (1784).— Troc/w^s 

 purpuratus Desh. in Lam., An. s. Vert. ed. 2, ix, p. 108. — Phil- 

 ippi, Conchyl. Cab., p. 10, t. 2, f. 9, 10. — Fischer, Coq. Viv., p. 

 366, t. 112, f. 3. — Cantharidus purpuratus Hutton, Proc. Linn. 

 Soc. N. S. Wales, ix, p. 361 ; Trans. N. Z. Inst., xv, t. 14, f. o (den- 

 tition). — T. rostratus Gmelin. Syst. Nat., xiii, p. 3580. — T. elegans 

 CrMEL. I. c, p. 3581.— (PAa.*. rubella Menke, Synops. Moll, teste Hut- 

 ton.)— T. te.vturatus Gould, Proc. Post. Soc. N. H., iii, p. 90 (1849); 



