1 -4 CANTHARIDUS. 



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

 angular at the periphery, 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 with black ; columella slightly arcuate, thickened, 

 covering the perforation. 



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



New Zealand. 



T. ( Cantkaridm) Huttonii E. A. SMITH, Journ. Linn. Soc. London, 

 xii (Zoology), p. 558, t, 30, f. 20 (1876). HUTTOX, Manual X. Z. 

 Moll., 1880, p. 100. Gibbula plumbea HUTTON, Journ. de Conch yl., 

 1878, p. 33 (teste Button, Manual N. Z. Moll., p. W0). Cantharidus 

 ieaebrosus Ad. var., HUTTON, Proc. Linn. Soc. N. S. Wales, ix (1884), 

 p. 362 ; Trans. N. Z. Inst., xiv, t. 7, f. L. (Dentition.) 



Care must be taken not to confound this species with one or two 

 others 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 pale purplish tint with the 

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

 C. PURPURATUS Marty n. PI. 45, fig. 44. 



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

 separated by slightly impressed 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 ; 

 -aperture subtrapezoidal, sulcate within ; lip thin ; columella nearly 

 vertical, columellar callous thin, narrow. 

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



Auckland to Bank's Peninsula, X. Z. 



Limax purpuratus MARTYN, Univ. Conch., t. 68 (1784). Trochns 

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

 tition). T. restrains GMELIN. Syst. Nat., xiii, p. 3580. T. elegans 

 GMEL. /. c., p. 3581. (P/ios. rw&e^aMenke, Synops. Moll, teste Hut- 

 ton.) T. icxturatus GOULD, Proc. Bost. Soc. X. H.,iii,p.90 (1849); 



