OF NEW SOUTH WALES. 87 



Striated at each end (scarcely visible under the lens) more dis- 

 tinct at the base, intermediate space smooth, ventricose above 

 the centre ; aperture narrow, outer lip angled, posteriorly slightly 

 thickened and produced, below straight ; columella with a single 

 obsolete plait at the base. 



Length, 2 lines; breadth, 1| line. 



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



49. — Atys sp. ? 



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



A single specimen was obtained with the back all broken ; 

 what remains of the aperture, shows at the base a small denti- 

 form tooth like that in Atys monodonta, A. Adams. 



* 



Atys sp. ? 



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



One living specimen found, the whole of the outer lip broken 

 off in the dredge ; what remain show it to be a thin, fragile 

 shell, finely, longitudinally, obliquely, striated, umbilicated and 

 transversely striated at both ends, the upper strias nearly obso- 

 lete ; inner lip twisted and truncated at the columella. 



51. — Atys nitida. 



Bulla nitida (Atys) A. Adams in Sowerby, Thes. Conch., Vol. 

 2, p. 589, pi. 125, fig. 127. 



Atys nitida, Reeve, Conch. Icon., pi. 3, sp. 24. 



Hab. Off Katow, New Guinea, 8 fathoms, hard mud bottom. 



52. — Atys tortuosa. 



Bidla tortuosa (Atys) A. Adams in Sowerby, Thes. Conch., 

 Vol. 2, p. 587, pi. 125, fig. 120. 



Atys tortuosa, Reeve, Conch. Icon., pi. 3, sp. 15 a, b. 



Hab. Darnley Island, Torres Straits, 25, 30 fathoms, sandy 

 mud. Off Katow, New Guinea, 8 fathoms, hard mud, one dead 

 specimen found ; Philippine Islands, 30 fathoms, sandy mud. 

 (Cuming.) 



