ACHATINELLA. 
Plate III. 
Species 17. (Mus. Cuming.) 
Achatinella Bella. Achat, testa conica, dextrorsa, 
anfractibus subventricosis, columella contorlo-plicald ; 
olivaceo-lnted, suturis nigro-fuscis, delude albifasciatd, 
anfractu ultimo inf erne fusco el alho fascialo. 
The pbetty Achatinella. Shell conical, dextral, 
whorls rather ventricose, columella with a twisted 
plait ; olive-yellow, sutures black-brown, then white- 
handed, last whorl brown and white-banded. 
Ilab. Motokai, Sandwich Islands. 
Mr. Cuming possesses several specimens of this pretty 
species of immature growth. The dark sutural band is 
sometimes absent in the last whorl, but the white band 
appears constant. 
Species 18. (Mus. Cuming.) 
Achatinella colobata. Achat, testa ohlongo-conicd, 
dextrorsa, anfractibus plano-coweezis, columella con- 
torlo-plicald, aperlurd pared; luted, viridi laiifas- 
ciata, suturis nigro-fuscis, columelld pallide rosacea. 
The coloured Achatinella. Shell oblong-conical, 
dextral, whorls flatly convex, columella with a twisted 
plait, aperture small ; yellow, encircled with a very 
broad green band, sutures black-brown, columella 
light pink. 
Hab. Sandwich Islands. 
Characterized, like A. pulcherrima, by a dark sutural line 
within the suture, but of a less elongated form. The 
ground-colour is a bright yellow, and each whorl is 
painted with a broad bright green band. 
Species 19. (Mus. Cuming.) 
Achatinella abbreviata. Achat, testa ovoid, subven- 
tricosd, dextrorsa, anfractibus convexis, superne margi- 
natis, spird breviusculd, apice obtusd, columella callosa, 
contortd ; olivaceo-luted, lined nigro-fu-sed ad suturas, 
anfractuum parte inferiori nigricanle-viridi. 
The shortened Achatinella. Shell ovate, somewhat 
ventricose, dextral, whorls convex, margined round 
the upper part, spire rather short, obtuse at the apex, 
columella callous, twisted ; olive-yellow, with a 
black-brown line at the sutures, lower part of the 
last whorl very dark green, apex black. 
Hab. ? 
The form of this species is again distinct from either of 
the preceding. 
Species 20. (Mus. Cuming.) 
Achatinella olivacea. Achat, testa oblongo-conicd, 
sinistrorsa, anfractibus convexis, superne tenuimargina- 
tis, columelld contorto-plicatd ; intense viridi-olivacea, 
lineis fuscescentibus subobscure cingulatd, columelld el 
aperturre fauce albis. 
The olive Achatinella. Shell oblong-conical, sinis- 
tral, whorls convex, thinly margined round the upper 
part, columella with a twisted plait ; dark green-olive, 
encircled with rather obscure brownish lines, colu- 
mella and interior of the aperture white. 
Hab. ? 
The rich dark olive colouring of this species leaves off 
suddenly in an abrupt line at the aperture, and the re- 
mainder of the body- whorl is of an orange-fawn tint, like a 
shell denuded to that extent of epidermis. 
Species 21. (Mus. Cuming.) 
Achatinella mustelina. Achat, testa aut sinistrorsa 
aut dextrorsa, acuminato-conicd, anfractibus subrotun- 
datis, superne marginatis, columelld callosa, subap- 
pressd, aperturd subauriculata, labro incrassato ; fusco- 
cinered, suturis et apice albis. 
The tawny Achatinella. Shell acuminately conical, 
whorls somewhat rounded, margined round the upper 
part, columella callous, rather oppressed, aperture 
slightly auriculated, lip thickened; brownish ash, 
sutures and apex white. 
Mighels, Pro. Boston Nat. Hist. Soc. 1845, p. 21. 
Hab. Waianai, Sandwich Islands. 
Distinguished by its acuminated form and subauriculate 
aperture, whilst the colouring is peculiar. 
I cannot agree with Dr. Pfeiffer, in regarding this and 
A. Bulimoides as varieties of A. lorata. On referring to 
De Perussac’s and Swainson’s figures of these species, 
which 1 have identified with specimens in Mr. Cuming’s 
collection, it will be found that all three are distinct from 
each other, in form, substance, and arrangement of colours. 
April, 1850. 
