CANTHARIDUS. 151 



ELEUCHUS VULGARIS A. Ad. Testa ovato-conoidea, subturrita, im- 

 perforata, laevigata, virenti, trausversim tenuissime striata ; lineis 

 undulatis viridis picta; basi convexa ; apertura ovata; columella 

 basi dente acuto terminata; labro postice subangulato. ( A. Ad.) 



Swan River. 



A. ADAMS, in P. Z. S. 1851, p. 171. 

 THALOTIA TESSELATA Tenison-Woods. 



Shell small, subumbilicate, conical, pale olive, spotted or tessel- 

 lated with white ; whorls 7, sub-convex, everywhere finely obliquely* 

 spirally transversely striate; furnished with five keels which are 

 broad, flattened, and the upper and lower ones broader and more 

 prominent ; base convex, keeled ; aperture sub-quadrate, outer 

 lip acute, thin, margined within , inner lip white, conspicuous ; 

 throat silvery nacreous, lirate. The interstices between the keels 

 sometimes striate. Alt. 6, diam. 4-i mill. ( Ten.- Woods.) 



Tasmania. 



TENISON-WOODS, in Trans, and Proc. Roy. Soc. Viet, xiv, p. 58. 

 (1877). 



THALOTIA DUBIA Tenison-Woods. 



Shell turbinately conical, solid, whorls intensely rose-purple and 

 rose -flamed ; whorls 7, convex (the four spiral flattened) keels 4, 

 small, distant, conspicuously granular; granules small, neat, and 

 rose-purple in color ; interstices clothed with a yellow silky perio- 

 straca; suture deep, broadly canaliculate; base flattened, spirally 

 lirate and radiately striate ; aperture sub-quadrate, thickened, con- 

 spicuously multidentate ; columella tuberculate, margined and 

 closely toothed. Alt. 18, diam. 15 mill. 



In general form resembling T. conica, but smaller, and more 

 closely ornamented. The mouth is also an approach to a Clanculus. 

 ( Tenison- Woods.) 



Clark's Islands. 



TENISON-WOODS, in Trans, and Proc. Roy. Soc. Viet, xiv, p. 59 

 (1877). 

 THALOTIA MARGINATA Tenison-Woods. 



Shell narrowly conical, oblique, solid, tessellated with small olive 

 or purple spots; whorls 8, concave above, below broadly carinate 

 or marginate, girdled with four lines of granules, of which the up- 

 permost is often the largest, closely decussate with oblique squamose 

 striae ; keel elevated, somewhat flattened, and projecting over the 



