5(3 ISEW SPECIES OF TASMANIA^ MOLLUSCA, ETC. 



ing, but the ground colour seems alwaj'S to be some shade 

 of purplish-brown. It may be blotched with green and 

 whitish in various degrees of pattern. 

 PI. XIV., figs, la, lb. 



Ap.-VTURPaS COSTIFERA, Sp. UCV. 



Shell small, fusiform, white with a broad chestnut 

 band on the centre of the body-whcrl. Whorls 5^ rounded, 

 the first two being quite smooth, the rest sculptured with 

 strong, rounded axial ribs, fourteen en the penultimate, 

 sixteen on the body whorl, they fade away a little below 

 the periphery. The base being encircled b}^ numerous fairly 

 strong spiral lirx ; the ribs are crossed by wexj fine, sharp 

 spiral threads. Aperture fairly large, pointed above, broad 

 at the base, where it scarcely becomes a canal ; columella 

 ex:cavate, bearing two low tubercles, outer lip rounded and 

 simple. 



Length, 4.5; breadth, 2 mill. 



Habitat. Tvue, with live others from about 40 

 fathom;-: East of Tliouin Bay. 



This specici? closely resenibles Jl/frn/i/orj/lui a iirostafrr 

 Verco. It is, however, a narrower shell, with more rounded 

 whorls, and the spiral lirae are much less strong ; it has, 

 too, a more bluntly rounded apex. 



PI. XIV., fig. 2. 



Xepotilla diaphana, sp. nov. 



Shell i'mall, thin, of a semi-transparent texture, colour 

 3'ellcwi=h-brown, pinkish towards the apex, broadly fusi- 

 form, whorls five, including a prominent two-whorled proto- 

 conch, which is strongly spirally lirate; the adult whorls 

 much rounded, and strongly cancellate. There is a hollowed 

 space below the suture, corresponding with a shallow sinus, 

 and ornament.ecl by curved growth lines ; strong axial ribs 

 cross the whorls and are separated by spaces of about their 

 own width ; they number about twenty on the body whorl 

 and fade away below the periphery; they are crossed on 

 the spire by three spirals, less strong than the ribiii and 

 about equally spaced, so that square meshes are formed, 

 producing small nodules at the junction. These spirals 

 continue on the base, where they are smaller and closer 

 together. Apeiture broad, with a verv short open canal, 

 columella excavate, with a narrow callous lip, outer lip 

 rounded, corrugated by the sculpture, with a broad rather 

 shallow sinus at the suture. 



Lcnsth 4.4; breadth, 2 mill. 



