504 Transactions, 
and, in my opinion, also conspecific. Е subcallimorpha has only 8 ribs 
on the body-whorl; this seems to be due to the wide spacing and 
obsolescence near the aperture, for the figure shows more ribs on the 
when worn. though no specimen in my collection exactly matches 
E. subcallimorpha M. & M., every point mentioned can be matched on 
for all these forms only one species can be admitted many different 
from the Recent shell so called). Iredale (2d) has separated our Recent 
to judge at present. The correct placing of this group will demand much 
labour. lle this subject is being dealt with, it may be iterated that 
the records of Verconella caudata (Q. & G.) from Target Gully are based 
on examples of P. compacta (Sut.) which have lost the outer lip and have 
no denticles on the columella. 4 
The ease of Natica zelandica Q. & G. needs consideration. Doubt has 
been thrown by other writers (7) on Suter's accuracy in identifying the 
small fossil Naticas, so plentiful in Awamoan horizons, with the Pliocene 
and Recent form ; and here, again, study of a large number of specimens 
shows that Suter erred. Саз еей forms, allowing for individual varia- 
fion, are identical with the Recent shell, but I have so far failed to find 
ndica Q. & G. in any Awamoan horizon, the nearest approach to 
e 
: . and the common Natica of Awamoan localities. This latter 
form, which has been generally taken for N. zelandica Q. . differs 
from it in many respects, notably its consistently smaller size and totally 
different spire. It is very plentiful at Target Gully and Pukeuri, and 
occurs at most Miocene localities. third species, occurring at Pukeuri, 
Target Gully, and Ardgowan, though much less frequently than its 
companion, is more nearly allied to the White Rock species, and, like 
it, bears a superficial resemblance to N. zelandica Q. & G. Natica 
maoria Finlay (= australis Hutt. (5) ) and Polinices vitreus (Hutt.) are also 
[ess а moan beds isti jes, 
together with many others, will be deseribed and figured later, but in 
the meantime Natica zelandica Q. & G.. N а Finlay, and P. vitreus 
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