Murpocu.—Some Tertiary Mollusca. 159 
Chlamys grangei n. sp. (Plate 9, fig. 1.) 
Shell (left valve) small, ovate, height and length about equal, somewhat 
inflated, almost equilateral, beak rather abruptly incurved, dorsal margins 
declining slightly convex, ends imperfect, basal margin rounded. Sculpture 
consists of about twenty narrow radiating riblets more slender on sub- 
marginal slopes, midrib on dise somewhat stouter and more prominent, 
grooves rather more than twice width of riblets with an occasional small 
radial not continuing to apex, in addition transverse sculpture of fine 
threadlets better marked in grooves. Ears: Posterior narrow, dorsal 
margin ridged, and with two or three indiStinet threadlets ; anterior im- 
perfect, it has three or more riblets and transverse threadlets. Interior 
matrix. 
Dimensions : Dorso-ventral, 20 mm. ; ant.-post., 20 mm. 
Type to be presented to the Wanganui Museum. 
Locality, gritty shell-limestone bed, Brighton. Collected by Dr. Mar- 
shall. 
It appears not unlikely that this species is the same as recorded by 
Grange (Trans. N.Z. Inst., vol. 53, p. 163, 1921), and with it a species of 
belemnite. The little that is known of the fauna of this horizon suggests 
that it is Cretaceous. 
VERCONELLA. 
Verconella marshalli n. sp. (Plate 10, figs. 1-3.) 
Shell fusiform, spire short, whorls convex, body inflated, canal produced. 
Sculpture consisting of fine spiral cords slightly variable, and with one, at 
times two, small threads in grooves; axials feeble or growth-striae only 
rounded coils. Sutures not deep, usually rather more impressed on higher 
whorls. Aperture oval, produced into fairly long open canal curved some- 
what backward and to left; outer lip effuse and lirate within, margin 
‘more or less excavate above and narrowly channelled at suture; columella 
concave, wall with a thin callus not concealing spiral sculpture, or with 
series of denticles only near outer margin, occasionally a small callus nodule 
near suture. 
Length, 74mm.; width, 34mm. (A small specimen, length 49 mm., 
width 21 mm.) 
Locality, Castlecliff blue sandy clays; also in the Kai Iwi, Okehu, and 
Nukumaru beds. 
Type in the Wanganui Museum. 
This species is not uncommon in the Castlecliff beds. It appears to 
be nearest to V. mandarina Duclos, from which it may readily be dis- 
tinguished by the small spire and inflated body-whorls; small or juvenile 
specimens with less inflated body may be distinguished by the finer sculp- 
ture and. less impressed sutures; it has been confused with mandarina and 
with valedicta. x 
It also occurs Recent, a few specimens having been obtained by 
dredging in Hauraki Gulf (16 fathoms) by Mr. La Roche, of Auckland. 
In the Dominion Museum, under the name of Siphonalia valedicta Watson, 
are three specimens, exact locality not recorded. In colour the Recent 
specimens are a light reddish-brown, and within the aperture in young 
individuals pale pink. The operculum is oval, rather pointed at the ends, 
