ATY-. 273 



A.pvkkra I'.KA/., 1'. L.S. N.S. W. ii, p. 86, 1*77 

 A pretty little species, having tlic ulx.]<> surt'ao- of u rugose ap- 

 pearance, the transverse sculpture beiu.i: <juitc distinct. In 

 specimens the columolla is sometimes straight and n-.t curved. 



A. DKNS.-V Brazier. Un figured. 



Small, oval, thick, dirty white shell, finely plicated, strongly 

 transversely striated; interstices with finer lines (as seen under the 

 lens) ; aperture narrow, wide below ; outer lip regularly arched, 

 posteriorly produced, anteriorly twisted and produced, partly cov- 

 ering the umbilicus. Length 2 lines, breadth 11 lines (Braz.*). 



Darnley Island, Torres Straits, 30 fathoms. 



.1. detisa BRAZ., P. L. S. N. S. W. ii, p. 86, 1877. 

 A. DUBIOSA Brazier. Unfigured. 



Shell small, oval, white, thin, shining, umbilicated at both ends, 

 the one at the base the largest, transversely very finely striated at 

 each end (scarcely visible under the lens), more distinct at the base, 

 intermediate space smooth, ventricose above the centre ; aperture 

 narrow, outer lip angled, posteriorly slightly thickened and pro- 

 duced, below straight ; columella with a single obsolete plait at the 

 base. Length 2 lines, breadth \\ lines (7>Va2.). 



Darnley Island, Torres Straits, 30 fathoms. 



J. dubiosa BRAZ., P. L. S. N. S. W. ii, p. 86, 1877. 



A. M'ANDREWII Smith. Unfigured. 



Shell elongate-ovate, truncated above, pellucid, encircled b;/ nu- 

 merous narrow milky bands, one in the middle wider ; transversely 

 distantly striated at top and base, the interstice smooth ; vertex 

 cavated, bounded by an acute margin. Aperture narrow, produced 

 a little above the vertex, a little dilated and effuse at the base : lip 

 thin, inserted in the middle of the vertex and sinuated there ; colu- 

 mella short, thickened, hardly twisted ; umbilical region slightly 

 perforated. Alt. 5, diam. 21 mill. (&). 



L<tnccr- .ries. 



A. m'andrewii E. A. S., Ann. Mag. N. H. (4), ix, p. 346. 



It is at once recognized by the numerous lacteous bands upon a 

 pellucid ground. 



A. CANARIENSIS Smith. Unfigured. 



Shell ovate, white, pellucid, striated with irregular growth Hues, 

 and transversely deeply striated above and below, lightly so in the 



