MOLLUSCA 299 
(3) Achatinella apicata (Newcomb MS.) Pfeiffer. 
Achatinella apicata Pfeiffer, P. Zool. Soc. London, 1855 [1856], p. 210. 
Has. Oahu, Halemano (Perkins). 
var. polymorpha, Gulick. 
Apex polymorpha Gulick, P. Zool. Soc. London, 1873, p. 81, pl. x. fig. 5. 
Has. Oahu, Wahiawa, Kalaikoa, Ahonui (Gulick); Kawailoa Gulch, and above 
Ewa (Perkins). 
var. vespertina Baldwin. 
Achatinella (Apex) vespertina Baldwin, P. Ac. Philad. 1895, p. 219 [shell and 
animal], pl. x. fig. 14. 
Has. Oahu, Kawailoa (Baldwin); from a ridge between Waala and Kawailoa 
Gulches (Perkins). 
var. alba, var. n. 
Shell snow-white, save for the peristome being margined with lilac, similar tinting 
appearing on the columella plait, and inside the outer lip at its junction with the body- 
whorl of the shell. 
Has. Oahu, near head of Kawailoa Gulch (Perkins). 
A fine series of this species. It appears to be distinct from A swzftz Newc. 
[=A. cestus Newce. var.], to which Newcomb subsequently referred it, and the type of 
which I have examined. The shell is larger, different in form, and more polished, the 
ground colouring darker, and the banding not so conspicuous in the typical form: 
the protoconch is in general brown, and but rarely white. The prevailing tint 
is brown, sometimes becoming black with a white area below the suture, rarely 
altogether snow-white. A few, from near Kawailoa, are tinted with lilac on an 
ashy ground, occasionally having a chestnut sutural line; these form a passage to 
A. vespertina Baldwin, in which the lilac tint has changed to cream-colour. This 
latter is the only form in which the animal appears to have been noticed. 
(4) <Achatinella bicolor (Gulick) Pfeiffer. 
Achatinella bicolor Pfeiffer, Mon. Hel. Viv. tv. 1859, p. 520. 
Near, apparently, to A. cookez Baldwin. 
Has. Oahu, Lehui (Pfeiffer). 
