468 Transactions. 
Height, 14 mm.; diameter, 6 mm. ; height of x нў 8mm. Height, 
mm.; diameter, "4mm. ; height of ‘aperture, 
Type and — paratypes, from Target Gully, in author’s collection. 
Not yet found else 
Has been ты identified by Suter as M. armorica, from which it is 
separable at sight. Тһе diagnosis and figure of M. armorica Sut. (N.Z. Geol. 
Surv. Pal. Bull. No. 5, p. 27, pl 12, fig. 4) do not agree with this shell, even 
though many important details are omitted in the und t Pda speci- 
mens of M. armorica Sut. from Otiake (here figured, Plate 50, figs. 4a, 45) 
show that this is a much smoother, more elongate shell, e a distinct 
polish, absent in C. othoniana. Canal is much longer and altogether different ; 
Dd also different, being larger, blunter, and more globose. An almost 
h peripheral space is present, as in the new species, but sculpture below 
xd peer is the same. Moreover, M. armorica Sut. is placed in Cancilla, 
while the new species is a Conomitra. 
Suter remarks on the resemblance of M. armorica Sut. to M. (Cancilla) 
atractoides Tate, and this is нА justified, the New Zealand shell 
differing mainly in as of sculpture. An even closer resemblance to an 
Australian fossil is shown by the new shell, which resembles C. othone 
T.-Woods so closely as ar render its separation a matter of doubt. Authentic 
Australian shells have not been seen, but judging from the figures (Trans. 
Roy. Soc. South Australia, vol. 11, pl. 4, fig. 10) the body-whorl of the new 
species is sooner contracted, aperture more dilated, and spiral sculpture 
not so regular. A more distantly related species is C. dennanti Tate, 
Conomitra inconspicua (Hutt.). (Plate 50, figs. 2a, 2b.) 
1885. Mitra inconspicua Hutton, Trans. LT Inst., vol. 7 . 326. 
1887. Mitra inconspicua Hutton, P.L.S. N.S.W. (2), vol. 1, p. 212. 
1915. Mitra inconspicua Hutton: Suter, N. Z. Geol. Surv. Pal. Bull. No. 3, p. 20. 
s common Waihao species is very ca related to the Australian 
adage eo complanata (Tate), differing mainly in its longer beak, and therefore 
relatively lower spire. 
Mitra eusulcata n. sp. (Plate 51, figs. 11а, 11b, lle.) 
Shell narrowly biconie, rather thin, protoconch of 34 smooth turns, 
high, regularly coiled, bluntly pointed, and not distinctly marked off from 
brephie stage. First whorl with 3, following whorls with 4, subequal spirals, 
increasing, through grooving of main ribs, to 8 unequal ribs on penultimate 
whorl; body-whorl with about 94 unequal spirals, a few of which are 
grooved medially. The ribs are low and flattish, with much narrower 
interstices ; finer and wider apart near beak. No axial sculpture ; punctures 
aperture, outlines straight, very slightly ei Whorls about 9, flat, 
regularly increasing, body-whorl bluntly angled at periphery, thence tapering 
quickly to beak. Suture straight, slightly oblique; whorls worn in its 
neighbourhood so that it seems, slightly subcanaliculate ; it is also uncertain 
whether it is margined. Aperture slightly oblique, long and narrow, slightly 
channelled above, with short open and truncated canal below. Outer lip 
convex, acute, smooth within. Columella subvertical, slightly twisted 
below, with 3 plaits in young s shell, 4 in larger specimen; plaits rapidly 
decrease in strength anteriorly, the last being very weak, they are truncated 
