ACHATINELLA.— Plate IV. 
plicate, lip of the aperture but little thickened ; olive 
or whitish, with oblique light red-brown streaks, 
variously painted with spiral black or green or brown 
bands and lines, columella purple-rose. 
Ferussac, Hist. Moll. pi. 155. f. 1. 
Hab. Sandwich Islands. 
The colouring of this species is extremely variable : there 
is, however, but one prevailing idea in its manner of dis- 
tribution. The columella is of a livid purple-rose in all 
the varieties. I consider A. Stewart ii, Green, to be a 
distinct species, notwithstanding that it resembles this in 
the colour of the columella ; and A. Iwida, Swainson, 
whose figure is only a magnified representation of an in- 
mature shell, cannot be referred to it without considerable 
doubt. 
Species 30. (Mus. Cuming.) 
Achatinella adusta. Achat, testa, acuminato-oblongd, 
subturritd, sinistrorsa, anfractibus rotundatis , colu- 
mella breci, callosa, dentatd ; intense castanea, basi 
nigricante , fascia spirali nigra infra suturas, columella 
rosacea. 
The scorched Achatinella. Shell acuminately ob- 
long, somewhat turreted, sinistral, whorls rounded, 
columella short, callous, toothed : dark chestnut- 
darker towards the base, with a spiral black band 
beneath the sutures, columella pinkish. 
Sob. ? 
The general colouring of this species, which is allied to 
A. vulpina and Stewart i, is similar to A. castanea, in which 
the black sutural band is wanting, and in which the colu- 
mella is particularly white. 
Species 31. (Mus. Cuming.) 
Achatinella ventulus. Achat, testa oblongo-cylindracea, 
dextrorsa. anfraclibus plano-coiwexis, subtilissime im- 
presso-striatis, ad suturas leciler crenulatis, columella 
breci, arcuata, tenne contort o-plicatd, aperturd pared ; 
intense brunnea, fascia pallida infra suturas et circa 
coluniellam, epidermide tenui indnta, apertune fauce 
etendescente. 
The slightly-inflated Achatinella. Shell oblong- 
cylindrical, dextral, whorls flatly convex, very finely 
impressly striated, slightly crenulated at the sutures, 
columella short, arched, thinly twisted-plaited, aper- 
ture small ; very dark brown, with a pale band beneath 
the sutures and around the columella, covered with a 
slight epidermis, interior of the aperture bluish. 
Helix ( Cochlogena ) ventulus, Ferussac, Prodrome, no. 437. 
Achatinella microstoma, Gonld (fide Pfeiffer). 
Ilah. Oahu, Sandwich Islands : Hinds. 
A dark cylindrical sub-hornv shell with a slight fuga- 
cious epidermis. 
