58 Maciueay Memortat Voiume. 
Opostom1a SHERIFFU, Hutton, Trans. N.Z. Inst. Vol. XV. p. 411. 
Shell much elongated, subulate. Whorls 15, smooth, flattened and polished, 
the suture deep. Aperture ovate, pointed behind ; columella with one strong 
plait. Length 14mm. 
Locality.— Wanganui. 
Oposromia Fasciata, Hutton, Trans. N.Z. Inst. Vol. XVIT. p. 320. 
(Plate vit. fig. 50.) 
Shell minute, ovato-elongated. Whorls 5, the first rounded and polished, 
the rest flattened; those of the spire with three small spiral grooves at the 
posterior end, a broad smooth band in the centre and a single groove at the 
anterior end. Body whorl with numerous spiral grooves in front of the smooth 
band. Suture impressed. Aperture ovate; columella with a single nearly 
obsolete fold ; umbilicus open. Length 4mi. 
Locahty.—W anganui. 
Opostom1a ruGATA, Hutton; O. plicata, Trans. N.Z. Inst. Vol. XVII. p. 319 (not of 
Uemnisvou: (Plate vu. fig. 51.) 
Shell minute, ovato-elongated, longitudinally plicated. Whorls 6, flattened, 
irregularly longitudinally plicated on the posterior half only, the anterior half of 
the body whorl smooth; the whole shell faintly spirally striated. Suture 
unpressed. Aperture ovate; columella with a single rather strong fold; the 
umbilicus covered. Length 3mi. 
Locality.—W anganui, Petane. 
Genus TRIVIA. 
Trivia NEOZELANICA, Kirk, Trans. N.Z. Inst. Vol. XIV. p. 409. 
Locality.—Petane, Matapiro. 
Genus CANCELLARIA. 
CANCELLARIA TRAILLI, Hutton, Cat. Marine Moll. of N.Z. p. 26. 
(Plate VII. fie. 52.) 
Shell small, thin, oval; spire short, the whorls angled. The entire shell 
very finely cancellated. Columella with three oblique folds ; outer lip shghtly 
erenate. Length 6mm.; breadth 4mm. 
Locatity.—W anganui, Petane. 
