554 T'ransactions. 
KEY TO SPECIES. 
Carinacca. 
(a.) Suture ине not tangential. 
small ; no Кы. huge basal limb. 
(b.) Suture со а]. 
waihaoensis : moderate € ii need ovate ; large basal limb, very wide umbilicus, 
slight funicle coales ietal callu 
perh moderate size, Mi: large basal limb, large umbilicus, slight coalescing 
unicle. 
Magnatica. 
sutherlandi : fairly large, broadly ovate; weak basal limb, moderate umbilicus, 
funicular ridge separated from call 
approximata : fairly large ; shucks basal limb, rather small but open umbilicus, 
funicular ridge present but weak, a groove from umbilicus across callus. 
€ ree Bros ovate to oval; obsolete basal limb; umbilicus variable, 
r very large ; traces of funicular ridge. 
dis deas broadly: ovate ; obsolete basal limb ; umbilicus fairly large, funicular 
ridge obsolete 
Natica (Carinacca) waihaoensis (Suter). (Plate 56, fig. 7.) 
1917. Mr pen waihaoensis Suter, N.Z. Geol. Surv. Pal. Bull. 5, p. 11, pl. 11, 
As Buter's type specimen was imperfect, he did not note the slight thick- 
ening of the umbilical wall on the apertural side. In some specim 
ens t Т 
feature is quite well marked, and evidently corresponds to the funicle of 
Natica s. str. 
Locality -—Greensand, McCullough’s Bridge, Waihao. 
Natica (Carinacca) haasti n. sp. (Plate 56, fig. 8.) 
Shell small, broadly oval; spire low, about one-third height of aperture; 
orls 4; protoconch with moderate nucleus; surface with fine growth- 
los suture ена not channelled ; aperture broadly semilunar; 
outer lip straight, slightly retracted to suture, inclined about 30° from 
vertical ; inner lip with thin parietal callus not invading umbilicus, which 
is relatively large and bounded by very por SER limb which forms 
prominent thickening at anterior corner of apert 
Type in Dose of Mr. а 8. es 
Height, 7 mm.; diameter 
Localities ќав. MecCullough'e Bridge "Waibao ; Hampden (one specimen is 
13 mm. in height — Ampullina suturalis of Marshall, 1923, p. 117). 
Natica (Carinacca) allani n. sp. (Plate 56, fig. 4.) 
Shell small, ovate; spire less than one-third height of aperture, with 
almost straight outlines ; protoconch of three and a half nid whorls with 
minute nucleus, sutures s slightly impressed се almost tangential, whorls 
depressed somewhat below it; aperture semilunar; outer lip straight, 
strongly retracted to suture, inclined About 25? from vertical; inner lip 
with short, fairly thick callus on rietal wall, coalescing below "with slighi 
funicular thickening ; атт Ань widely open, bounded by high wide 
caused by a prominent thickening of anteri se 
Type in collection of Mr. M ree rior corner of apertural мея 
Height, 19 mm. ; diameter, 165 mm. 
РУР СА 
