ACHATINELLA.— Plate III. 



Species 22. (Mus. Cuming.) 



AcHATiNELLA BILINEATA. Achat, testd oblongo-conicd, 

 dextrorsd, basin versus subventricosd, anfractibus ro- 

 itmdatis, columelld dentato-plicatd ; vivide luted, Unek 

 duabus nigris approximatis medio conspiciie cingulatd. 



The two-lined Acuatinella. Shell oblong-comcal, 

 dextral, rather veiitricose towards the base, whorls 

 rounded, columella dentately plicate ; bright yellow, 

 conspicuously eucu'cled round the middle with two 

 close black lines. 



Eab. ? 



The form of this shell is peculiar, and there is something 



equally characteristic in the marking. 



Species 23. (Mus. Cuming.) 



Achatinella pulcherrima. Achat, testd subelongato- 

 conicd, dextrorsd, anfractibus convexis, superne tenui- 

 marginatis, columelld brevi, callosd ; Ititea, fasciis l/i- 

 tiusculis nigris plerumqiie cingulatd, sufuris semper 

 nigris. 



The very beautiful Achatinella. Shell somewhat 

 elongately conical, dextral, wliorls convex, thinly 

 margined round the upper part, columella short, 

 callous ; yellow, mostly encii-cled with rather broad 

 black bands, sutures always black. 



SwAiNSON, Brand's Journal, 1828, p. 85. Zool. Illus. 



2ndseries, pi. 123.f. 2. 



Achatinella Byronii, Gray. 

 Hab. Sandwich Islands. 



Although the black sutural line is striking and con- 

 stant, the character is by no means confined to this species. 

 Two or three have been confounded together in collections 

 under this apprehension. 



Species 24. (Mus. Cuming.) 



Acuatinella castanea. Achat, testd oblongo-conicd, 

 sinistrorsd, apice subobtmd, anfractibus convexis, su- 

 perne tenuimarginatis, columelld dentato-plicatd; ustii- 

 lato-luted, anfractiis nltimi dimidio i7iferiori vivide 

 cadaneo, interdum undique castaned, columelld ef aper- 

 turcefauce albis. 



The chestnut Achatinella. Shell oblong-conical, 

 sinistral, rather obtuse at the apex, whorls convex, 

 thinly margined round the upper part, columella den- 

 tately plicate ; burnt yellow, lower half of the last 

 whorl bright chestnut, sometimes chestnut through- 

 out, columella and interior of the apertiu-e white. 



Hab. Sandwich Islands. 



The colouring of this species always partakes more or 

 less of rich bright chestnut. 



