Descriptions of New Species of Achalinella. 11 



17. Achatinella mucronata. 



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 parva, ovata ; columella contorta, plicata ; lablo 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. 



is. 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. 



