920 Transactions.—G'eology. 
Odostomia (Pyramis) fasciata. 
Shell minute, ovato-elongated, faintly spirally striated. Whorls 5, the 
first rounded and polished, the rest flattened ; those of the spire with three 
shallow spiral grooves at the posterior end, a broad smooth band in the 
centre and a single spiral 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, :14 inch. 
Locality. Wanganui. 
Cancellaria lacunosa. 
Shell ovato-fusiform, not umbilicated, the spire produced. Whorls 6 
the first two embryonic; the others rounded, spirally ribbed and longitu- 
dinally plicated. Spiral ribs three on the spire whorls, and seven or eight 
on the body whorl, with fine spiral threads between them. Longitudinal 
plications numerous and rather oblique, about 15 in a whorl. Aperture 
broadly ovate; columella with three strong folds ; no anterior notch ; outer 
lip acute. 
Length, :48 inch ; breadth, *86 inch. 
Locality. Petane. 
Admete (?) ambigua, PI. xviii., fig. 18. 
Shell minute, ovate, perforated, spirally striated. ^ Whorls 4, the first 
two smooth, the others rather convex, spirally grooved, about 18 or 20 
grooves on the body whorl. Suture well marked. Aperture ovate, more 
than half the length of the shell; columella smooth, rather produced in 
front, not covering the umbilicus. 
Length, -08 inch. 
Locality. Wanganui. 
Turritella ( Eglisia) planostoma. PI. xviii., fig. 19. 
Shell minute, turreted. Whorls 8 or 9, flattened, the anterior portion 
concave, smooth. Spire whorls with four strong, equal, spiral ribs. Body 
whorl with five or six spiral ribs and a smooth base. Suture well marked. 
Aperture ovate, flattened anteriorly, and the outer lip rather straight. 
Length, :2 inch. 
Locality. Wanganui and Petane. 
Rissoa emarginata. Pl. xvii., fig. 90. 
Shell minute, ovato-conical, smooth, polished, very delicately spirally 
striated. Whorls 6, flattened, the two first very small and smooth. Suture 
obscure. Aperture ovate, the peristome continuous; slightly notched an- 
teriorly. 
Length, ‘08 inch. 
