84 THE PROCEEDINGS OP THE LINNEAN SOCIETY 



ture rather wide, outer lip slightly arched, somewhat acumin- 

 ately produced above, expanded below ; columella nearly straight, 

 reflected, producing behind it a minute umbilicus. 



Length, 3 lines ; breadth, 1| lines ; alt., 1J lines. 



Hab. Cape Grenville, North-East Australia, 20 fathoms, sandy 

 mud ; Albany Passage, Cape York, North Australia, 11 fathoms, 

 sandy mud and broken shells. 



This species differs very much from Haminea ambigua (A. 

 Adams), the centre of the shell being smooth, and each end 

 having eight deep transverse engraved lines, whereas II. ambigua 

 is entirely transversely striated. 



38. — Haminea vitrea. 



Bulla vitrea (Haminea), A. Adams in Sowerby, Thes. Conch., 

 vol. 2, p. 583, pi. 124, fig. 102. 



Hah. Bet Island, Torres Straits, found inside the reefs on the 

 sands; Philippine Islands. (Cuming). 



39. — Scaphander multistriata, n. sp. 



Shell white, thin, transparent, oblong ovate, transversely, ob- 

 liquely, and closely striated, attenuated towards the spire ; spire 

 truncated, slightly umbilicated ; aperture, pyriform ; outer lip 

 slightly inflected above, from the centre to the base widely ex- 

 panded, a little thickened ; columella obliquely somewhat faintly 

 plicated. 



Length, 3|- lines ; breadth at spire, 1 line ; at centre, If lines ; 

 base, It? lines ; aperture circle at spire, 1 \ lines ; at centre, \\ lines. 



Hab. Darnley Island, Torres Straits, 30 fathoms, sandy mud. 



40. — Atys naucum. 



Bulla naucum, Linn. Syst. Nat., p. 1183. 



„ „ (Atys) A. Adams in Sowerby Thes. Conch., 



Vol. 2, p. 584, pi. 124, fig. 107, 108, 109 ; Reeve Conch. Icon., 

 pi. 1, sp. 1, a, b, c. 



Hab. Palm Island, North East Australia ; Darnley Island, 

 Torres Straits, found inside the reefs on sandy mud flats ; New 



