MOLLOSCA 355 
subgen. Kavala, nom. nov. 
Carinella Pfr. (1875) nec Sowerby (1839). 
The type of Pfeiffer’s group is A. kawazensis Newc.: the subgeneric name was 
used first by Sowerby for a different group of Molluscs, Whether 4. adata and 
A. helictformis really belong here I am not clear. 
(98) Amastra (Kauazia) alata Pfeiffer. 
Flelix alata Pfeiffer, P. Zool. Soc. London, 1856, p. 33. 
I have elsewhere (P. Malac. Soc. London, 1. p. 127) pointed out that all authors 
have overlooked the fact that this shell has a columellar plait. It is, in my opinion, 
not a Helicoid at all, but belongs to an aberrant group of Amastra. The columellar 
plait does not ascend rapidly into the shell, but stands almost horizontally, and has no 
final ‘knob.’ The single specimen found by Mr Perkins measures diam, max. 8; alt. 4; 
ailtzwapert.. 3 mill. 
Has. Lanai (Pfeiffer); Mts. behind Koele (Perkins). 
(99) Amastra (Kauata) heliciformis Ancey. 
Amastra heliciformis Ancey, Bull. Soc. Malac. France, vi. (1890), p. 340. 
Has. Oahu, Waianae (Ancey). 
(100) Amastra (Kauaia) kauarensis Newcomb. 
Achatinella kauaiensis Newcomb, Ann. Lyc. New York, vu. (April, 1860), 
p. 145; Amer. J. Conch. 1. (1866), p. 209, pl. xm. fig. 1. 
Achatinella (Carinella) Rauaiensis Newc., Pfeiffer, Novit. Conch. Iv. p. 115, 
pl. cxxvi. figs. 8—rIr. 
A good series, principally however dead shells, of this almost extinct species. 
Mr Perkins notes that one specimen was found “with embryonic shells in mouth.” 
Has. Kauai (authors); Halemanu (Baldwin); Makaweli at 2000 ft. and Hale- 
manu at 4000 feet (Perkins). 
