28 Descriptions of New Species of Achatinella: 



17. Achatinella mncronata. 



Testa dextrorsa, elongato-ovata, albida, signis mucronatis numerosis 

 fuscis ornata, ; anfractibus sex, ventricosis ; ultimo contracto, epidermide 

 denso fusco-nigro induto ; sutura superne subimpressa, inferne profunda ; 

 apertura pafva, ovata, ; columella contorta, plicata ; labio simplici. 



Shell dextral, elongate -ovate, white with numerous trans- 

 verse arrow-headed brown markings, except last whorl which 

 is covered with a dense brownish-black epidermis ; whorls six, 

 rounded, the last contracted ; suture slightly impressed in the 

 upper portion, becoming deep at the junction of the last whorl ; 

 aperture small, ovate ; columella with a twisted plait ; lip 

 simple. 



Length 0.7 inch. Breadth 0.32 inch. 



Habitat. — Molokai. 



Remarks. — The A. rubens Gould is the nearest allied species. 



18. Achatinella fusca. 



Testa, dextrorsa, cylindraceo-elongata, tenui, longitudinaliter distincte 

 striata, fusca, fasciola cornea suturali circumdata ; anfractibus quinque, 

 subplanis ; sutura lineari, subimpressa ; apertura ovata ; columella interne 

 dentata ; labio acuto. 



Shell dextral, cylindrically elongate, thin, with strongly 

 developed longitudinal striae, brown with a narrow corneous 

 band revolving beneath the suture and occupying the inferior 

 third of the last whorl ; whorls five, nearly flat ; suture linear, 

 slightly impressed : aperture ovate, columella dentated within ; 

 lip acute. 



Length 0.35 inch. Breadth 0.2 inch. 



Habitat. — Oahu. 



