Manwick.— Pliocene Mollusca from Hawke's Bay. 193 
a comparison could be made with the original figures and description. 
The figures show a shell without radial ribs. The short description reads, 
“ strüs transversis densis, undulatis, sulcis longtudinalibus obsoletis," 
while a fuller description below is, “ transversim eleganter striata, et sulcis 
олда distantibus parum profundis (interdum obsoletis) decus- 
sata." New Zealand specimens, when well preserved, have 11-12 strong 
somewhat nodular ribs, and so should be separated.’ There are also differ- 
ences in shape. 
As regards V. unidentata, Suter probably quoted this in his synonymy 
from information senten: by Dall, no date of publication being given in 
either case. Iredale accepted the synonymy, but — mes the priority 
of unidentata ; d Rer not appear to have compared aland with 
European specim Cossmann and Peyrot (1912, p. 8D) state that the 
half as many ribs should have been рин г in the same speci 
Types of V. marshalli (right valve) in the collection of sa New Zealand 
Geological Surv ey. 
Height, 5 mm. ; length, 4 
Locality. — — Stewart island (Recent). Kindly presented by the late 
Mr. R. Murdoch. 
Subgenerically, this shell should go with V. lutea and V. bollonsi under 
Pleuromeris, and should not have been under Miodontiscus as classed by Suter. 
Venericardia (Miodontiscus) minima n. sp. (Plate 16, figs. 3, 4.) 
Shell minute, obliquely subtriangular, inequilateral ; beaks extremely 
prominent, median, strongly curved; dorsal margin arch , descending 
rapidly; basal margin fairly regularly rounded, slightly flattened 
iorly; anterior end projecting, slightly goed than the posterior, 
convex below but deeply excavated under beaks, lunule not circumscribed, 
no escutcheon ; hinge moderately strong; right valve with anterior and 
posterior cardinals obsolete, median strong, triangular, oblique, toca 
in middle, there is a weak anterior lateral; left valve with two strong 
cardinals, anterior short, ndicular, posterior long, curved, oblique ; 
cis of obsolete narrow concentric folds, no radials; inner margins 
"Holotype (right valve) in collection of the New Zealand Geological 
CHE 1:6 mm. ; length, 1:5 mm. 
Locality.—1098, blue clays, cutting in main road, Maraekakaho. 
Remarks.—According to Dall's — n (1903, p. 1409), Miodontiscus 
has the posterior right Кып absent. In V. minima this tooth, though 
weak, is certainly present. The pe oes characters agree well with this sub- 
genus. 
Lucinida dispar (Hutton). (Plate 16, fig. E 
1873. Cyclina dispar Hutton, Cat. Tert. Moll., 
1914. sige 4 On» (Gray): Suter, N.Z. Got. ‘Bore. Pal. Bull. No. 2, p.9 
Gra. 
1919. Iocinida D eur on; Murdoch, Trans. N.Z. Inst, vol pl 
р. р!. 20, ‚8, 
The type did aly specimen is релде іп a hard matrix, so that 
the interior cannot be seen; but the exterior of the shell is of such 
7— Trans. 
