19 
Aperture narrowly ovate, angled above, its left contour slightly 
concave throughout (parietal wall notconvex); peristome thin, con- 
tinuous; outer lip sinuous below the suture, produced below the 
middle, under lip somewhat retreating, and slightly bent down, 
forming a shallow and broad sinus. Columella oblique, slightly 
curved, straight in the middle, columellar lip rather broadly reflected 
limiting an umbilical fissure and continuous on the parietal wall 
in a thin but distinet callus. Dimensions: H. 2.6, br. 1.4 mm. 
— Locality: North Island: 16, a few dead shells. 
No representative of the genus Fossarus was until now known 
in New Zealand. In this paper 5 species are recorded. The present 
one seems to be closely related to F. bulimoides Te n i so n-W ood s 
figured by Ta te & May (1901, pi. XXVI, fig. 66). 
Fossarus conicus n. sp. 
(Pi. II, fig. 59.) 
Shell small, fragile, conical, opaque white, a little shining, rimate. 
Whorls 6, convex; suture subcanaliculate. Apex obliquely flat- 
tened; protoconch (2 whorls) smooth, of a yellowish-brown colour. 
Spire as high as aperture, with straight outlines; base slightly con¬ 
vex. Sculpture indistinet, consisting of faint distant spiral threads, 
visible only in places, and irregular flexuous lines of growth here 
and there appearing as low ribiets, Aperture narrowly ovate, ang¬ 
led above, its left contour undulating (parietal wall convex, columella 
concave); peristome thin, outer lip protracted below the middle, 
and lower lip sinuous as in the preceding species; columellar lip 
narrow, reflected, bounding a very narrow umbilical fissure; parietal 
callus very thin. Dimensions: H. 3, br. 1.7 mm. — Locality: North 
Island: 16, 3 empty shells. 
Fossarus productus n. sp. 
(PI. II, fig. 60.) 
Shell small, fragile, turreted, dull white, opaque, rimate. Whorls 
5 1/4, convex, suture deep, apex papillate; protoconch of 2 whorls, 
smooth; next whorl smooth, the 4th and subsequent with regular 
close, revolving cords and narrower sulci between them, the upper- 
most 4 cords stronger, with somewhat broader interspaces, the 
uppermost cord separated from the suture by a smooth (or faintly 
2* 
