452 Transactions. 
Natica inexpectata n. sp. 
This also is so close to N. consortis that it is best described by comparison 
with that species; the type is at present unique,* and further examples 
may show that it is worth only varietal rank. Early whorls are as in 
N. consortis, but sutural platform not quite so prominent. There are 
nearly 5 whorls, and on last platform tends to become obsolete, infrasutural 
outlines approaching those of N. zelandica Q. & G., to which species 1t 1s 
brought into nearer resemblance by the relatively large size of shell. Whorls 
much narrower, however, than in N. zelandica, but shape of these and of 
aperture is in accord with N. consortis. Funicle much stronger than in the 
latter species, three-parts filling the pit, and ending in a lightly convex 
flattening ; very similar to that of N. zelandica. 
Height, 15 mm. ; diameter, 14 mm. ; 
Type, from Clifden, Southland (band 7, Hutchinsonian), in authors 
collection. 
Polinices pseudovitreus n. sp. (Plate 49, figs. 3a, 3b, 3c, 3d.) 
Polinices amphialus Wats.: Suter (in lists of fossils from Awamoan localities), 
ot of Watson 
Shell small, porcellanous and slightly shining, rather thick, globosely 
elevated, spire conspicuous and scalar. Fine and close-set growth-lines ; 
less than two-thirds total height. Outer lip sharp and strong, pat 
below. Columella straight. Inner lip expanded as a very definite and 
ver the n 
umbilieus, leaving only a small chink open. Front of columella very 
slightly flattened back on indistinct circumumbilical ridge. 
eight, 8 mm. ; diameter, 6-75 mm. (type). Height, 9 mm. ; diameter, 
7 mm. (largest specimen). х 
уре and seven others, from Rifle Butts, near Oamaru, in authors 
collection. 
though of fewer whorls, sutures more deeply incised, much more une 
Spire, and more prominently convex whorls. No specimens of this spoe d 
have yet been found at the coeval locality of Pukeuri, but Mr. Marwie 
states that one specimen has been collected at Awamoa. At Pukeuri, 
Target Gully, and Otiake, however, there occurs another new species 1 
Polinices, quite distinct from P. pseudovitreus in its larger umbilicus an 
* Since the above was written the author has visited Otiake and there ecce 
numerous specimens referable to this species, though mostly smaller in size - 
show that the best features for differentiation from N. consortis are, 
sutural orm and the larger funicle, and also the more inflated @ 
of the base, due to the more rapid descent of the last whorl. 
mentioned, the 
ppearance 
te 
mer 
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