142 PETTERD : NEW TASMANIAN SHELLS. 



A pretty tumid species, but >rarely obtained 

 It comes nearer Murex scalaris A. Adams (the 

 Trophon umhilicatus of Tenison Woods), than any 

 other of our numerous forms of the genus, but may 

 be distinguished by its swollen form, beautiful sculp- 

 ture and colour. I have never collected any species 

 like it in the south. 



27. Trophon eburnea n. sp. Shell fusiform, white, dull ; 

 whorls, 4|, rounded, suture impressed, irregularly 

 marked with lines of growth, ornamented with very 

 fine numerous spiral lines, interspaces decussate ; 

 aperture somewhat large, ovate, outer lip thin ; canal 

 short and open. Long. 16 mill., lat. 8 mill. 



Habitat, Tamar Heads. 



A plain milk-white, finely cancellated fusiform 

 species, totally different from any other described 

 from our coasts. It has much the aspect of a Fusus. 

 Professor Tate obtained a single specimen at Aldinga 

 Bay, South Australia. 



28. Terebra Beddomei n. sp. Shell elongate, white, 

 smooth, apex blunt, suture scarcely mipressed, whorls 

 6-7, very slightly convex. Long. 6| mill, lat. 2 mill. 

 Habitat, Brown's River. 

 A plain form without ornamentation. 



29. Cerithiopsis Johnston! n. sp. Shell elongate, 

 turreted, white, somewhat translucent; whorls 14 (?)> 

 decollate; suture excavate, with spiral grooves on each 

 whorl, grooves very finely transversely striate ; 

 aperture obliquely quadrate, slightly reflexed, narrowed 

 anteriorly. Long. 9 mill., lat. 2^ mill. 



Habitat, Circular Head, Tamar Heads, and other 

 localities on the North Coast. Somewhat rare. 



J.C, iv., Jan., 1884. 



