Descriptions of New Species of Achatinella. 9 



laribus dissecta, fusca, superne lineis albis longitudinalibus notata; 

 anfractibus sex, plano-convexis ; sutur& profunda ; apertura oblongo- 

 ovata : columella simplici, plana ; labio simplici. 



Shell sinistral, acuminate, turreted, with the surface irregu- 

 larly cut up into furrows, ridges, and tubercles by deep longi - 

 tudinal sulcations crossed by strongly developed transverse 

 striae ; color brown, with white longitudinal lines on the upper 

 whorls ; whorls six, flatly convex ; suture deep ; aperture 

 oblong-ovate ; columella plain and smooth ; outer lip simple. 



Length 0.65 inch. Breadth 0.25 inch. 



Habitat. Molokai. 



Remarks. The last two species, together with the A. plicata 

 Mighels, form a group peculiarly interesting ; deviating from 

 the typical forms sufficiently to warrant a separation from 

 the genus Achatinella. Should the number of species be multi- 

 plied they may with propriety be erected into a distinct genus. 



14. Achatinella eloiigata. 



Testa sinistrorsa, acuto-turriformi, longitudinaliter distincte striata, 

 epidermide fusca ; anfractibus septem ventricosis ; sutura profunda, sim- 

 plici ; apertura ovata ; columella plicata ; labio simplici. 



Shell sinistral, acutely turreted, with numerous well defined 

 longitudinal striae, covered with a brown epidermis; whirls 

 seven, rounded ; suture deep, simple ; aperture ovate ; columella 

 plicate ; lip simple. 



Length 0.5 inch. Breadth 0.22 inch. 



Habitat. Oahu. 



