14 



PROCEEDINGS OF THE JI ALACOLOGICAL SOCIETY. 



band on the last whorl ; base of shell convex, sculptured with fine 

 lines of growth only, and painted with several lightish-brown, very 

 thin, revolving bands ; suture impressed, somewhat crenulated ; 

 umbilicus reduced to a hardly perceptible chink ; columella-margin 

 excavated, much thickened in the umbilical region ; labrum thickened, 

 white, slightly expanded, the margins joined by a coarse callus; 

 aperture obliquely, broadly lunate. Alt. 7'5, diam. maj. 10'25mm. 

 Aperture: alt. 4, diam. 4'5mm. 



Hah. — Montebello Islands, Western Australia. 



Natica REN, n.sp. 

 Shell ovate, imperforate, solid, whitish; whorls 4 J, the earlier 

 whorls sculptured with fine, arcuate wrinkles, the last two whorls 

 healing this sculpture above only, being smooth below, a faint 

 brownish band appearing on that portion of the shell where are 

 situated the wrinkles ; suture lightly impressed ; columella-callus 

 gibbons above, white, polished, very heavy, bulging outwards both 

 above and below, and extending over the umbilical region; labrum 



acute; aperture elongately ovate; interior of shell tinged with pale 

 reddish-brown, especially above ; operculum having 3 whorls, the 

 inner side slightly convex, white, covered with a thin, pale-yellowish 

 periostracum, the outer side, white polished, bearing posteriorly 

 a reniform rich brown raised blotch. Alt. 22, diam. maj. 21, 

 min. 13 mm. Aperture: alt. 14, diam. 7mm. 

 Hab. — Montebello Islands, Western Australia. 



Phasianella montebelloensis, n.sp. 

 Shell turbinately fusiform, j^olished, flesh-coloured, paiuted with 

 somewhat distant, narrow, interrupted, spiral bands of livid purple, 



between which occur narrow, spiral bauds of deep scarlet, regularly 

 punctated with cream-coloured spots, and transversely painted with 



