MOLLUSCA 315 
(y) One-banded, the whitish shell tinted with yellow, ashy, or slaty strigations. 
A few are white above the band, yellowish below, and show traces of a second band in 
the umbilical area. 
(5) Two- and even three-banded, ground-colouring white, tinted faintly with 
ashy strigations, shell not quite so attenuate. 
Has. Molokai, Kalae (Baldwin) ; the Mountains (Perkins). 
(54) Achatinella (Partulina) morbida Pfeiffer. 
Achatinella (Bulimella) morbida Pfeiffer, P. Zool. Soc. London, 1859, p. 30. 
Has. ? Oahu. 
The only authority I am aware of for the exact habitat is Mr Baldwin, who gives 
Oahu, but he marks it as one of the species he has not seen. 
(55) Achatinella (Partulina) mucida Baldwin. 
Achatinella (Partulina) mucida Baldwin, P. Ac. Philad. 1895, p. 222, pl. x. fig. 23. 
A series of about 60 specimens. It is generally of an ashy colour with a dark zone 
at the periphery ; smaller colour lines are also present in most specimens. The brown 
stain at the base of the columellar plait is also noteworthy. 
Has. Molokai, Makakupaia (Baldwin); Makakupaia, and Mountains of Molokai 
(Perkins). 
(56) Achatinella (Partulina) nivea Baldwin. 
Has. Maui, Makawao to Huelo (Baldwin). 
(57) Achatinella (Partulina) perdix Reeve. 
Achatinella perdix Reeve, Conch. Icon. Achatinella, sp. 43 (1850); Newcomb, 
Ann. Lyc. New York, vi. p. 317 [animal]; Gwatkin, P. Ac. Philad. 1895, 
p. 238 [radula |. 
Achatinella undosa Gulick, Ann. Lyc. New York, vi. p. 205, pl. vu. fig. 33 (Dec. 
1856). 
A. undosa was wrongly placed by Clessin (Nom. Helic. Viv. p. 305) as a synonym 
of A. radiata Gould. 
Has. Maui, Lahaina (Baldwin); Olinda at 4ooo ft. (Perkins). 
