Original Descriptions of Achatinella. 67 



more) brown bauds, the one above, the other below the periphery ; 

 suture submarginate ; whorls 5 1-2, convex; aperture white ; lip 

 thin ; eolumellar fold strong, rose. 



Hab. Lihue. — Sm. 



PULCHERRIMA GROUP. 

 91. Achatinella pulcherrima Swainson. 



A. pulcherrima Swain. Zool. 111., iii, 1833, p. 123, pi. 3, fig. 2. 



A. testa ovato oblonga, sub-cylindracea, alba vel flava, fasciis castaneis 

 ornatis ; labii margine fusco. 



Var. A. Aurantia, sutura castanea. 



Shell ovate oblong, subcyliudrical, white or yellow, with broad 

 bands of chestnut ; margin of the lip brown. 

 Var. A. Golden yellow, suture chestnut. 



This very elegant species is about eight-tenths of an inch 

 long, and is much more slender than any of the preceding. It 

 varies somewhat in form, some specimens being more ventricose 

 than others, and also in the number and colour of its bands. The 

 ground colour is a deep and rich chestnut, with from one to three 

 bands of orange, yellow, fulvous, or white : the marginal groove to 

 the suture is very close and distinct in all. The golden yellow 

 variety is without bands : in all the colours are remarkablly rich 

 and vivid. — Swain. 



Hab. Wahiawa to Kawailoa. — Gk. 



The pulcherrima group includes a large variety of shells of 

 various colors from almost pure white to very dark brown, with and 

 without bands. All are dextral. A. byronii Wood, comes very 

 near to this group, but I have not been able to secure the descrip- 

 tion of that shell. 



92. Achatinella melanostoma Newcomb. 



A. melanostoma Newc. P. Zool. Soc. London, 1853, p. 132, pi. xxii, fig. 7. 



Shell dextral, polished, solid, conical ; whorls 6, plano-convex, 

 slightly margined above ; suture moderate, accompanied by a black 

 revolving band ; aperture subovate ; lip black, thickened within ; 

 columella short, brownish red, terminating abruptly in a strong 

 plait or tuberosity ; colour yellowish or umber, with or without 

 transverse brown lines. Long. 14/20, lat. 7/20 poll. 



Hab. Ewa. — Newc. Waipio to Wahiawa. 



The very black lip marks this member of the pulcherrima group. 



