198 Transactions. 
above, and with short wide anterior canal bent to left and deeply notched; 
outer lip sharp, slightly sinuous, smooth within ;. columella slightly arcuate ; 
inner lip calloused, produced along edge of canal and ending in sharp point. 
Holotype in collection of the Canterbury Museum. 
Height, 16 mm. ; diameter, 9 mm. 
Locality.—Clays below limestone, Petane. 
Remarks.—This Cominella is a very common one in the Petane clays _ 
of the Hawke’s Bay District. By Suter it was identified as the Recent _ 
C. quoyana (A. Ad.) (= huttoni Kobelt), but it is easily distinguished by 
the strong narrow ribs persisting to the suture above, and the strong 
spiral threads with interstices of equal width. 
Trophon murdochi n. sp. (Plate 17, figs. 12, 13.) 
‘Shell small, fusiform ; with turreted spire equal in height to apertum — 
and canal; whorls 4 besides protoconch, early ones with flat shoulder, — 
later ones convex but still flattened below suture, body-whorl about three- 
quarters total height, contracted gradually on base to form fairly long - 
stout neck with slight twist to left and backwards and with moderate | 
and coiled in axis of shell; sculpture—first conch-volution of much greater — 
diameter than protoconch, so there is quickly developed a wide flat 
shoulder, which later becomes more sloping and relatively narrower, spiral. 
sculpture of 3 strong cords with wider interstices, the lowest appears 
on the conch-whorl, soon afterwards the middle one and then the top one * 
at angle of shoulder, a fourth spiral appears in suture near aperture, while — 
there is a weak one on shoulder of last two whorls, body with 8 strong 
spirals besides weak one on shoulder, whole surface covered with close fine 4 
harp varices, stronger in interstices; suture well impressed; apert 
oval, subangled above, produced below into fairly long twisted canal well — 
notched at base ; outer lip thin, slightly sinuous, as far as can be seem _ 
smooth within; columella straight, smooth; inner lip smooth, ending а 
short way along canal. 
Holotype in collection of the New Zealand Geological Survey. 
Height, 13 mm. ; diameter, 7 mm. 
Locality.—1099, clays below limestone, road-cutting, Maraekakaho. 
This species is easily distinguished from the other New Zealand examples 
of the subgenus by its fusiform shape and the number of spirals on the 
body-whorl. 
Xymene drewi (Hutton). (Plate 17, fig. 8.) 
1883. Cominella drewi Hutton, Trans. N.Z. Inst., vol. 15, p. 410. 
1893. Pisania drewi Hutton, Macleay Mem. Vol., p. 42, pl. 6, fig. 13. 
1915. Euthria drewi (Hutton): Suter, N.Z. Geol. Bin. Pal. Bull. No. 3, p. 23 
X material consists of two specimens, the larger of which was 
selected by Suter as lectotype and wrongly called “holotype” by hum. 
utton’s measurements agree with neither, but he appears to have given — 
the dimensions of the largest specimen he knew of in many cases, irrespective — 
type material. The two specimens do not agree even generically : 
the larger one has a parietal tooth and two small ones at the base of the 
