34 AURICULIDA. 
Length, :4; breadth, :2.—( Pfeiffer.) 
New Zealand (Cuming.) N. Australia and New Caledonia 
(Brazier Chevert Expedition). 
Genus, OPHICARDELUS—Beck. 
Shell ovato-oblong, umbilicated, smooth ; spire elevated, sub-conic ; 
aperture oval; inner lip anteriorly dilated and reflexed, with two plaits 
at the fore part, the posterior spiral forming an elevated ridge round the 
umbilical region ; outer lip thin, simple. 
Australia and New Zealand. 
O. australis, Quoy and Gaimard, Voy. Ast. i., p. 169, pl. 13, f- 34- 
38. Shell imperforate, ovate-conic, rather solid, almost smooth, greenish 
horn-colored, generally with brownish bands ; spire elongated, conic, 
pointed, often eroded ; suture linear; whorls 9, flat, sculptured “Hea 
slight arcuate striz near the suture, the last forming about three-fifths of 
the total length; convex, attenuated at the base ; aperture rather oblique, 
semi-ovate ; parietal plait one, horizontal, produced externally into an 
obtuse keel surrounding the umbilical region ; columellar plait oblique, 
reaching the margin of the aperture; peristome sharp ; right margin 
smooth, dilated above in front ; basal margin rather expanded. 
Length, “6 breadth, -3. (Pfr). 
Auckland. Australia and ‘Tasmania. 
Genus, MARINULA—King. 
Foot simple inferiorly, without a transverse groove. Shell ovato- 
oblong, imperforate, solid, smooth ; spire short, acute; aperture obovate ; 
inner lip broad, excavated, with three plaits, the posterior the largest ; 
outer lip posteriorily sinuated, internally simple, the margin acute. 
M. filholi, Hutton; Jour. de Conch xxvi, ~. 42. Ovato-oblong, 
smooth, spire short ; ; inner lip with three plaits, the posterior of which is 
much the largest, and the anterior the smallest. Outer lip without plaits. 
Pale purplish brown, plaits white. 
Length, -35 ; breadth, <2. 
Auckland and Massacre Bay. P 
Genus, LEUCONIA—Gray. 
Foot divided inferiorly by a transverse groove. Shell ovate oblong, 
imperforate, smooth ; spire conical ; aperture elongate, oval ; inner lip 
with two plaits anteriorly ; ; outer lip smooth internally, the margin simple, 
acute. 
L. obsoleta, Hutton ; Jour. de Conch xxvi., p. 42. Small, thin, 
semi-transparent. White, with a thin brownish epidermis. Whorls 4, 
very finely spirally striated in young shells. Columella rather flattened, 
anterior Bia of the inner lip almost obsolete. 
Length, 
Beeinad 
