ACHATINELLA.— Plate II. 
gined at the sutures, columella conspicuously cal- 
lous-toothed, apex rather small; olive-green, apex, 
columella, and interior of the aperture white. 
Hab. Sandwich Islands. 
Chiefly distinguished by its elongately conical form, and 
light olive-green colouring.* 
Species 14. (Mus. Cuming.) 
Aciiatinella perversa. Acliat. testa globoso-conica, 
sinistrorsd, apicem versus subacuminata, columella, cal- 
losa, plano-dentatd, labro snbincrassato ; olimceo-fuscd, 
lineis viridi-nigrbeantibut spiralilus et obliquis subir- 
regulariter decussatd , supra et infra suturas opaco-albd. 
The reversed Achatinella. Shell globosely conical, 
siuistral, rather acuminated towards the apex, colu- 
mella callous, flatly toothed, lip somewhat thickened ; 
olive-brown, rather irregularly decussated with spiral 
and oblique greenish -black lines, opake-wliite above 
and below the sutures. 
Swainson, Zool. Illus. Second Scries, pi. 99. f. 2. 
Turbo lugubris sinislrorsus, Chemnitz. 
A. decora, var. Pfeiffer. 
Hal. Sandwich Islands. 
The opake white sutures are very characteristic in this 
species, and it has moreover a peculiar cross-lined style of 
painting. De Eerussac figured it with A. decora, and Dr. 
Pfeiffer quotes it as a variety of that species. 
Species 15. (Mus. Cuming.) 
Achatinella sijiulans. Achat, testa globoso-conica, 
sinistrorsd, apicem versus acuta, anfractibus superne 
conspicue marginatis, columella brevi, piano-callosa ; 
alba, lineis perpauds fuscescentibus cingulata, fascia 
intense fused circa columellam, columella labroque 
pallide purpurascentibus. 
The allied Achatinella. Shell globosely conical, 
sinistral, sharp towards the apex, whorls conspicu- 
ously margined at the sutures, columella short, flatly 
callous; while, encircled with a very few light 
brown lines, with an intense brown band around the 
columella, lip and columella tinged with light purple. 
Hub. ? 
The colouring of this species is so like that of A. decora , 
that it might be taken for a variety ; yet it differs in form, 
the spire being more acuminated, and the last whorl not 
so broad and ventricose. 
Species 16. (Mus. Cuming.) 
Achatinella spibizona. Achat, testa elongato-conicd, 
dextrorsd, sttbumbUicald, anfractibus septem ad octo, 
convexis, oblique plicato-striatis, striis ad suturas sitb- 
rudibus, columella contorio-plicatd, aperlura parvius- 
culd ; intense brunned, zona alba infra suturas, epi- 
dermide tenui fuscescente indutd. 
The spiral-zoned Achatinella. Shell elongately 
conical, dextral, slightly umbilicated, whorls seven to 
eight in number, convex, obliquely plicately stri- 
ated, strim somewhat rude at the sutures, columella 
with a twisted plait, aperture rather small ; intense 
brown, with a white zone beneath the sutures, 
covered with a thin brownish epidermis. 
Ferussac, ITist. Moll.pl. 155. f. 14, 15. 
Achatinella acuta, Swainson. 
Hub. Oahu, Sandwich Islands. 
This and A. turritella represent an abnormal form of 
the genus, differing from the type in having more -whorls 
and in not possessing a similarly polished painted exterior. 
