Descriptions of Neiu Species of Achatinella. 19 



2. Achatinella tessellata. 



Testa sinistrorsa, ovato-oblonga, solida, minutissime decussata, albido- 

 flavescente, pleruinque vittis transversis nigris vel castaneis diverse 

 picta ; anfractibus convexis, ultimo paulum inflato, superioribus nigro et 

 albido semper tessellatis ; apertura alba, vel rosea, ovata, infra effusa, ; 

 columella brevi et late callosa ; labio columellari lato, subreflexo. 



Shell sinistral, ovate-oblong, solid, with minute decussating 

 striae, color white or fawn-colored, variously striped or not with 

 . black or chestnut bands, upper whorls always tessellated with 

 black and white ; whorls convex, the last somewhat inflated ; 

 aperture white or roseate, ovate, effuse below ; columella short 

 and broadly callous ; columellar lip broad and slightly reflected. 



Length 1 to 1.1 inch. Breadth 0.6 inch. 



Animal. — Body light grey, mantle slate color. 



Habitat. — Molokai. 



Remarks. — This shell in form and general appearance ap- 

 proaches A. virgulata Mighels, but may be readily distin- 

 guished at any period of its growth by the tessellations on the 

 upper whorls, by its more robust form, and by differences in 

 the animal. 



3. Achatinella Adanisi. 



Testa, dextrorsa, conica,, acuminata, transversim exile et longitudinali- 

 ter rugulose striata, fusco-castanea. irregulariter albido punctata et 

 strigata ; sutura valde impressa ; anfractibus sex, ultimo infra medium 

 fascia alba interrupta ; apertura plumbea ; columella in plicam solidam, 

 abrupte tortam desinente ; labio simplici. 



Shell dextral, conically acuminate, finely striated transversely, 



