32 
this pale-brownish in colour. Colour of the body pale rosy (in 
alcohol). — Dimensions: L. 37, br. 29 mm. 
Shell (PI. I, fig. 22) a thin hyaline membrane, without trace of 
calcareous substance; whorls 3 1/2, convex, apex mamillar, proto- 
conch membraneous, of a grainy consistency. 
Radula (text-fig. 4) broad, of the formula 1. 1.1 (breadth 1.4 
mm); median tooth with divergent basal legs and a short and broad 
cusp; its height considerably smaller than that of the laterals (length 
about 0.22 and breadth 0.25 mm); laterals broad, curved, inner 
edge thin and with about 6 small denticles, the cusp strong and 
pointed with its outer edge finely serrated; length of the laterals 
about 0.45 mm. 
Locality: Auckland Island: 41, 1 sp. 
This new and large species of the genus Lamellaria resembles 
L. mollis Smith in its membraneous shell, but externally it differs 
in its verrucose notum. 
Fam. Naticidae. 
Natica zelandica Quoy & Gaimard. 
North Island: 10, 1 sp., h. 10.5. — 13, 1 sp., h. 12. — 16, 
1 small sp. — 22, 1 sp., h. 23. — 25, 2 sps., h. 19. — Stewart 
Island: 36a, 3 sps., h. 17. 
Fam. Trichotropidae. 
Trichotropis inornata Hutton {=clathvata Sowerby). 
South Island: 29, 6 sps., h. 17. — Stewart Island: 32, 1 sp., h. 22* 
Fam. Cymatiidae. 
Argobuccinum tumidum (Dunker) {=argus G m e 1 i n, by S u t e r). 
Stewart Island, without definite locality, 1 empty shell, h. 108 
mm. I red ale and Hedley consider the Ausiralian-Neozelanic 
form as a distinet species not identical with A. argus from the Cape 
Colony. 
Argobuccinum austvalasia (Perry). 
North Island: 1, 1 small sp. 
