126 CANTHARIDUS. 



ish inside ; columella vertical, slightly arcuate, straight in the 

 'middle; parietal wall covered by a light callous. 



Alt. 14-17, diam. 9-11 mill. 



Southern Australia; Northern Tasmania. 



T. pulcherrimus WOOD, Ind. Test, suppl., t. 6, f. 45. PHILIPPI, 

 Abbild. u. Beschr., ii, Trochus t. 7, f. 1 ; Conchyl. Cab., p. 132, t. 23, 

 f. 4, t. 43, f. 11. FISCHER, Coq. Viv., p. 137, t. 46, f. 4. T. preissii 

 MKF., Moll. Nov. Holl. Sp., p. 17. T. puella PHIL., Zeitschr. f. 

 Mai., 1851; Conchyl. Cab., p. 327, t. 46, f. l2. Thalotia marice 

 TEN I8ON WOODS, Proc. Roy. Soc. Victoria, xiv, p. 58 (1877). 



Separated from C. purpuratus by the smaller size, thicker shell, 

 coarser, more unequal ribs and crimson peristome ; from C. lesueuri 

 by the much coarser sculpture. 



. LESUEURI Fischer. PL 45, figs. 52-54 ; pi. 34, figs. 9, 10. 



Shell imperforate, elongated conical, somewhat solid, whitish or a 

 little tinged with olive, painted with numerous rather narrow lon- 

 gitudinal olive-brown or reddish-brown stripes generally broken into 

 tessellations on the base ; spire long, apex subacute, whitish ; sutures 

 moderately impressed ; whorls about 7, fiat or concave below the 

 sutures, convex and swollen at the periphery and above each sut- 

 ure, encircled by numerous fine lirae ; last whorl a trifle deflexed at 

 aperture, often subangular at the periphery; aperture rhomboidal, 

 less than half the total length of shell ; peristome rather thin, acute, 

 edged by a row of red dots, thickened a little distance within, the 

 thickening finely crenulated ; columella vertical, marked with 

 crimson at the outer base. Alt. 13-19, diam. 10-11 mill. 



S. Australian Coasts ; Tasmania. 



T. lesueuri FISCHER, Coq. Viv., p. 129, t. 45, f. 2. BRAZIER, 

 Proc. Roy. Soc. Tasm., 1886, p. 194. Phasianella elegans LAM., 

 An. s. Vert., iii, p. 53 (1822). Trochus elegans, KIENER, Spec, et 

 Icon. Coq. Viv., t. 45, f. 2 (not T. elegans GmeL). T. lehmanni 

 MKE., Moll. Nov. Holl., p. 18 (1843). PIIILIPPI, Abbild. u. Besch- 

 reib., ii, Trochus t. 7, f. 2 (not T. lehmanni KIKNER). T. pietus 

 PHILTPPI, Conchyl. Cab., p. 139, t. 23, f. 18, I9. Thalotia picta 

 ANGAS, P. Z. S., p. 179 (1865). (Not T. pietus Wood.) 



This species is characterized by its fine spiral striation, whorls 

 swollen at the periphery, and more or less red-edged peristome. In 

 some specimens the longitudinal color streaks are quite broad ; the 

 base is alimst always finely tessellated, and the lower part of the 



