182 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Outer lip vertical at the middle, lirate within, the lirge corresponding 

 to grooves on the outside, edge sharp. Columella straight ahove, 

 forming a blunt angle with the parietal wall, slightly turned to the 

 left below, smooth, twisted, and with a distinct fold at the base ; 

 inner lip narrow and thin. Operculum unknown. Diameter 3, 

 height 7"1 mm. 



Hah. — Foveaux Strait. 



This species may at once be distinguished from all the other New 

 Zealand species of the genus by the shouldered whorls, a somewhat 

 exceptional feature in this family. 



Atima biconica, n.sp. PI. VII, Fig. 10. 



Shell small, biconic, very thin, translucent, not shining, yellowish 

 white, with a distinct canal. Sculpture consisting of oblique spiral 

 threads upon the neck ; the growth-lines are microscopic, fine 

 and dense. Colour yellowish white, with a few light-brown zigzag 

 markings. Spire elevated, conic, of about the same height as the 

 aperture with canal ; outlines straight. Protoconch papillate, of one 

 and a half smooth whorls. Whorls 5, regularly increasing, flattish, 

 the last well rounded at the periphery, considerably contracted below. 

 Aperture high and narrow, oblique, angled above, produced below 

 into a straight, short, and widely open canal, truncated at its base. 

 Outer lip distinctly convex at the middle, contracted below, thin 

 and sharp. Columella subvertical, lightly convex in the middle, the 

 spirals of the neck passing over it ; inner lip obsolete. Operculum 

 unknown. Diameter 2-1, height 4'7 mm. 



Kah. — Hauraki Gulf, in 25 fathoms. 



The two specimens I have do not appear to be full-grown. 



Ftjlgueaeia (Alcithoe) depeessa, n.sp. PI. VII, Fig. 11. 



Shell moderately large, ovate, solid, with a short spire and large 

 aperture, the last two or three whorls with nodules on the angle of 

 the shoulder, with a few brown zigzag lines. Sculpture : the 

 penultimate whorl with a row of distant, roundish nodules above the 

 suture, the body- whorl with a row of elongated, prominent nodules 

 on the angle of the shoulder, their number being about eight or nine. 

 Colour very likely yellowish white, with a few longitudinal fulvous 

 zigzag bands, indistinctly arranged into three spiral bands on the 

 body-whorl, and a fourth above the fascicle ; outer lip with a few 

 brown spots. Spire low, conoidal, its height about one-third that of 

 the apertui'e. Protoconch much worn and nucleus lost in my specimen. 

 Whorls about 5, the last very large, the upper whorls lightly convex, 

 the last two broadly shouldered, the slope flattish, body-whorl flatly 

 convex at the periphery and somewhat contracted below ; the 

 fasciole broad, hardly raised, flattish. Suture distinct, but not deep. 

 Aperture high, triangular, narrow above, widened below, with a 

 narrow upper channel, very broadly truncated and rather deeply 

 notched at the base. Outer lip oblique, its upper part nearly straight, 

 the lower moderately curved, much thickened, rounded, smooth, but 

 not reflected, retrocurrent toward the suture. Columella subvertical. 



