143 
definita ; apertura oblongo-ovata ; columella fortiter tuberculata, 
extremitate purpurea ; labro simplici ; colore luteo ; apertura in- 
terne alba vel nigro-purpurea; anfr. superioribus partim notis 
coloris umbrosi obscure signatis ; sutura cum vel sine vitta nigra. 
Long. x3 lat. 2 poll. 
Hab. Molokai. 
Shell dextral, polished ; whorls 5, convex, margined above ; suture 
well-defined ; aperture oblong-ovate ; columella strongly tuberculate, 
with purple tip ; lip simple; colour yellow, upper whorls tinged with 
umber ; sutures with or without a black band ; aperture within white 
or dark purple. 
This species shows two varieties with and without the sutural 
band. The aperture of the first is purple within, of the second a pure 
white. 
38. ACHATINELLA soror (PI. XXIII. fig. 38). A. testa sini- 
strorsa, conica, turritiformi ; anfractibus 7, rotundis ; sutura valde 
impressa; apertura subovata, parva; labro simplici; columella bre- 
vissima, in dentem contortum, plicatum terminante ; epidermide 
tenui, supra fusco-cornea et infra pallido-cornea. 
Long. 3 lat. 2 poll. 
Hab. Mani. 
Shell sinistral, conically turreted ; whorls 7, rounded ; suture deeply 
impressed ; aperture subovate, small; lip simple ; columella very 
short, terminating in a twisted plicate tooth ; epidermis thin, dark 
corneous above and light corneous below. 
Var. a. Last whorl white, shell solid. 
Length 2; breadth = inch. 
20? 
Var. 3. Shell thin, dark corneous, polished. 
Length “; breadth = inch. 
203 
This species is the complete analogue of A. acuta found in Oahu ; 
it has a more ventricose aspect, and the striae are more developed in 
the A. acuta. 
39. AcHATINELLA oBeEsa (Pl. XXIII. fig. 39, 39a). A. testa 
depressa, conica, solida, inflata ; anfractibus 5, ventricosis, striatis ; 
sutura bene definita ; apice acuto ; apertura ovata ; columella plica 
forti, alba munita; labro intus incrassato; epidermide coloris um- 
brosi; apertura alba. ’ 
Long. = lat. S poll. 
Hab. Hale a ka la, Mani. 
Shell depressed, conical, solid, inflated ; whorls 5, rounded, striate ; 
suture well-marked; apex acute; aperture ovate ; columella with a 
strong white plait; lip thickened within ; colour of epidermis dark 
umber ; aperture white. 
Var. agglutinans. 
Shell somewhat carinated on the last two whorls, with the keel ex- 
tended by agglutinations, giving it a pagoda-like form. 
