MaRwick.—Naticidae and Naricidae of New Zealand. 577 
Amauropsella major (Marshall), (Plate 60, fig. 19.) 
1917. Nucleopsis major Marshall, Trans. N.Z. Inst., vol. 49, p. 458, pl. 36, fig. 38. 
Shell rather small, ovate; spire gradate, two-thirds the height of 
aperture; whorls 6, convex on spire and narrowly shouldered where they 
os: to the well-channelled suture; surface with numerous spiral threads 
rated by narrow grooves, about ten on fs penultimate and thirty on 
the е body, the upper ones rather broad and often divided by a secondary 
groove rture ovate, effuse below; sep lip slightly concave dies 
gently гало to the suture in large s ns (but these features a 
clear in the type), inclined about 15° from мект = ; inner lip nearly sania, 
with a thin enamel on parietal wall; umbilicus narrow, with sharp spiral 
ridge pees to meet anterior part of inner margin where it starts to 
become ef 
Type in Otago Mus eum. 
Height, 10 mm. ; diameter, 6-5 mm. 
Localities. — Wanga aloa ; Boulder Hill. 
The original description does not mention the umbilical ridge, nor is it 
shown in the figure. It is, however, quite well developed. The inclined 
‘aperture, the ridged umbilicus, and the smooth columella show that the 
shell is not one of the Acteonidae. 
The strong spiral sculpture is an unusual үи for the group, but 
that it is not of generic importance is indicated e presence of a smoot 
shell with the same essential features in the same «эг, 
Amauropsis martinezensis Dickerson (1914, p. 142, p. 13, figs 4 a, b) 
has a * surface marked by fine but меса а revolving lines 
Amauropsella teres n. sp. (Plate 60, fig. 20.) 
Shell rather small, ovate; spire gradate, two-thirds the height of 
aperture; whorls 6, convex on spire and narrowly shouldered where they 
bend over to the well-channelled suture, surface with growth-lines mes ; 
aperture ovate, effuse below ; outer lip very slightly concave and 
imperceptibly retracted to suture; inner lip straight, with only thin менан 
on parietal wall; umbilicus аа small, but not invaded by callus, with 
sharp spiral ridge which abuts against a projection at anterior end of inner 
margin. 
Type in collection of Mr. H. J. Finlay. 
Height, 14 mm. ; diameter, 11 mm 
Locality. — Boulder Hill. 
П. Family NARICIDAE. 
Genus MicrescHara Cossmann, 1881. 
Section MacRoMPALINA Cossmann, 1888. 
* Shell auriform, very widely umbilicated, feebly trelissed, aperture 
obliquely spread out and very depressed, walls of umbilicus ornamented 
with radial and lamellar folds from peripheral keel. 
“Туре : problematicus Desh. (Еосепе.) 
“ 
This section—which is separated from Micreschara s. str. by its 
auriform shape and by its wide umbilical funnel—is not confined to the 
Eocene, as was npe until now ; not only did it live in the Miocene of 
19—Trans. 
