PETTERD : ON SOME NEW TASMANIAN HELICES. 21$ 



to it is If. curacocR Brazier, but it differs from that species by 

 its more elaborate ornamentation. 



10. H. Furneauxensis, n. sp. 



Shell minute, narrowly umbilicate, conoid, shining, 

 horny, under the lens finely irregularly striated ; whorls 4|, 

 rounded ; suture impressed ; spire a little elevated, obtuse at 

 the apex ; aperture almost circular ; margins closely approach- 

 ing ; peristome simple ; columellar margin faintly dilated. 



Diam., greatest 2^, height i mil. 



Habitat — Furneaux Group and Waterhouse Island, 

 Bass Straits. 



A minute species with some resemblance to H. Halli 

 Cox, but from which it can be known by its larger size, less 

 elevated spire, and more open umbilicus. 



11. H. Henryana, n. sp. 



Shell minute, very openly, deeply umbilicated, discoidal, 

 light-brown, very highly polished, with very faint traces of 

 lines of growth; whorls 3^, convex, regularly increasing in 

 size; suture impressed; spire slightly elevated; aperture lunate ; 

 columellar margin not dilated. 



Diam., greatest i^, least i; height ^ mil. 



Habitat — Domain, Hobart Town. 



Of this little shell I have only seen two specimens; they 

 were found by my brother at the locality mentioned. 

 Although approaching H. Furneauxensis mihi and H. Halli 

 Cox, it may be known by its depressed form and shining 

 smooth surface. I obtained some years ago specimens of a 

 shell at Circular Head, in company with H. ccbsus Cox 

 and ff. pictilis Tate, which may be of this species, but I have 

 not now the specimens. 



