LAMELLARIID&. 59 
A. pyramidalis, Reeve; Conch., Ic., f- 11. Shell ovate, rather 
thin, ventricose, purplish-fawn colour, callosity fuscous; spire pyra- 
midally accuminated, callous throughout ; columella arcuately twisted 
(Reeve.) 
Nelson. 
Scarcely distinct from the last. 4. Wove-zealandie, Sow., f. 41, is no 
doubt the young of one or the other. 
FAMILY—LAMELLARIID. 
Lingual teeth in three or seven series, the central broad, the lateral 
versatile ; lateral teeth simple, curved; tentacles separated at their 
bases, and bearing the sessile eyes at their origin externally ; mantle 
included, lining the shell; foot oblong, obtusely quadrate in front, 
rounded behind; hind or operculigerous lobe greatly developed, 
entirely covering and concealing the shell; operculum none. Shell 
thin, spiral, covered by the hind lobe of the foot. 
Genus, CORIOCELLA—Blainville. 
(?) Mantle deeply fissured and bilobed in front, the surface depressed 
and covered with numerous hexagonal tubercules. Shell spiral, 
calcareous, ear-shaped, thin, sub-opaque ; spire short ; whorls rounded, 
last whorl large ; aperture patulous. 
C. ophione, Gray ; P.Z.S., 1849, ~. 169. Shell oblong, elongate, 
pellucid, white; spire very short, conical; whorls convex, last whorl 
very large, convex, rather iridescent ; aperture ovate; pillar lip curved, 
slightly reflexed (Gray.) i 
Auckland. (Major Greenwood.) 
I do not know on what evidence Adams refers this species to 
Cortocella, for the shell only appears to have been described. An 
animal found near Dunedin by Mr. G. M. Thompson, and which I 
take to be Gray’s Lamellaria ophione, belongs perhaps to the genus 
Cryptocella (H. and A. Adams.)* The mantle is smooth but much 
wrinkled, resembling the convolutions of the brain; it is considerably 
expanded and waved laterally, but is not produced nor bi-lobed 
anteriorly, nor is it fissured on the back; the colour of the whole 
animal is yellow. The eyes are sessile on the external side of the 
tentacles, near the base, as in Lamed/arta. The shell resembles that of 
Cryptocella. 
FAMILY—FASCIOLARIID-®. 
Lingual teeth in three series (1. 1. 1.) the central re-curved, toothed 
at the tip, the lateral not versatile (Odontog/ossate ;) lateral teeth very 
broad, linear, with -many equal teeth ; central tooth narrow, small ; 
mantle enclosed, with a straight siphon : operculum ovate-acute, nucleus 
apical. 
Genus, LATIRUS—Montfort. 
Shell turreted, fusiform, umbilicated; spire produced; whorls 
