1919.] 
New Zealand Institute Science Congress. 
267 
Island from Stony hurst northwards and on the east coast of the North 
Island. On these coasts there is a considerable development of the Amuri 
limestone, and in an earlier geological epoch there may have been still more 
limestone. Or this glaringly white rock limpets would be exposed to intense 
light. Presumably C. flava contains the same pigment as the other shells, 
but spread evenly through the shell-substance. This may afford a better 
protection from light than colour spaced in a pattern. 
I doubt if adaptation of an individual shell to a pale-coloured (red or 
white) rock is as complete as Iredale suggests. C. flava is probably a 
true species evolved on the Amuri limestone, which has not entirely lost 
its power of producing dark radials. When the fry settle on dark rocks 
they probably do not give rise to dark species. 
Postscript (12/6/19). — Since this paper was read I have collected a series 
of C. flava from the “ grey marls ” (Oamaruian sandstone) of Waipapa 
Point, Marlborough, where it occurs associated with C. radians. On the 
neighbouring Amuri limestone the limpets are mostly small and dwarfed, and 
C. flava though present is not abundant. As Iredale remarked, at Napier 
the C. flava excavates hollows in the soft “ grey marls/ although the 
neighbouring C. radians does not. Obviously the above suggested explana¬ 
tion does not apply exactly. I shall be glad to .obtain series of limpets 
from collectors in all parts of New Zealand and the Chatham Islands for 
further study. The hardness and colour of the rocks should be noted, 
and as large as possible a series from young to adult should be procured, 
uncorroded shells being selected where possible. 
A New Discoglossoid Frog from New Zealand (Liopelma hamiltoni), 
by A. It. McCulloch (communicated by J. A. Thomson). 
(This paper will appear in the Transactions). 
Abstract. 
Dr. Thomson exhibited a live specimen of a new species of frog which 
was discovered on Stephen Island by Mr. H. Hamilton in 1916. This 
specimen, together with others subsequently collected by Dr. Thomson, 
was submitted to Mr. A. K. McCulloch, of the Australian Museum, Sydney, 
who after dissection identified it as a new species of Liopelma, the genus 
to which the only other known endenfic frog, Liopelma hochstetteri, also 
belonged. Anatomically the species was a discoglossoid frog, but in habits 
it resembled more a toad, living under stones, where it probably fed on 
beetles, wetas, and worms, and hibernating also near the centre of a large 
pile of stones. During the summer the few streams on Stephen Island 
dried up, and there was no surface water. It was probable, therefore, that 
the species had no free-swimming tadpole stage but was viviparous. 
The Pronunciation of Scientific Terms in New Zealand, with Special 
Reference to the Terms of Botany, by A. Wall. 
(This p£per will appear in the Transactions). 
Press Notice (Lyttelton Times). 
Professor A. Wall read, a paper on “ The Pronunciation of Scientific Terms in New 
Zealand, with Special Reference to the Terms of Botany.” Having regard to the 
chaotic pronunciation of scientific terms, especially those of botany, in New Zealand, 
he proposed an attempt to standardize it and fix a system. He discussed whether 
it would be 'preferable to choose the “insular” or the “Continental” mode of 
