24 Descriptions of New /Species of Achatinella. • 



its immature state and Achatinella only when fully developed. 

 If retained in genus Achatinella and if its identity with Gould's 

 shell should be established, Gould's name will take precedence, 

 notwithstanding its use by Pfeiffer for a different shell. Pfeiffer's 

 A. radiata was published six months after Gould's, and more- 

 over it proved to be identical with A. viridans Mighels (not 

 Eeeve.) 



10. Achatinella polita. 



Testa dextrorsa, conico-ovata, nitida, luteola, superne fusco obscure 

 notata, fascia suturali lata, nigra in ultimo anfr. protracta. ; anfractibus 

 quinque, convexis ; sutura distincta, marginata. ; apertura oblongo-ovata, 

 purpurea ; columella valde tuberculata, extremitate purpurea ; labio 

 simplici. 



Shell dextral, conic-ovate, polished, light yellow, a portion 

 of the upper whorls faintly marked with umber, suture with a 

 broad black band, and a narrow line of the same color con- 

 firmed around the body whorl : whorls five, convex : suture 

 well defined, margined : aperture oblong-ovate, dark purple ; 

 columella with a large tubercle tipped with purple ; lip simple. 



Length 0.55 inch. Breadth 0.45 inch. 



Habitat. — Molokai. 



MemarJcs. — This has the aspect of a young shell, but from the 

 size of the tubercle, and an examination of a large number (some 

 containing young) may be considered as having acquired its 

 ordinary size. 



li. Achatinella obesa. 



Testa dextrorsa, depresso-conica, inflata, solida, striata, epidermide 



