202 Descriptions of New Species of Achatinella. 



black bands ; lip well thickened within, and deeply colored on 

 the edge opposite the bands ; columella slightly toothed. 



Var. c. — Ventricose, conical : one specimen has the follow- 

 ing dimensions : length 0.86 inch ; breadth 0.54 inch ; length of 

 aperture, 0.40 inch. 



Station. — On the Wiliwili {Erythrina monosperma). S. T. 

 Alex. 1 



Habitat. — Honukawai, Maui. S. T. Alex. ! 



Remarks. — Has been confounded with A. Tappaniana and 

 A. splendida Newc, but is smaller than the former, with 

 fainter sculpturing and more regularly conical spire ; it also 

 differs in its dark bands, rounded body whorl, less reflected lip, 

 and slight columellar fold. It resembles A. splendida Newc. 

 in its brown bands, but is otherwise quite distinct. A nuclear 

 character which distinguishes it from either of the above, is the 

 spiral line on the first whorls. 



31. Achatinella Baileyana. 



Plate VII. Figs. 31 a. and 31 6. 



T. sinistrorsa, perforata, ovato-conica, solida, nitida, striatula, sub Iente 

 minutissime decussatula, plumbea, sfrigis albidis minutis obliqnis, et lineis 

 spiralibus nigris augustis ornata, ; apice subacute, tessellata ; spira 

 subcouvexo-couica ; anfr. 6^- vol 7, modice convexis, vix marginatis ; 

 ultimo regularitcr rotundato, r %% longitudinis sequante ; plica columellari 

 pallidc violacea, supera, valida ; apertura parum obliqua, non cxpansa, 

 rotundato-semiovali, intus pallide violacea ; pcrist. vix reflexo, intus 

 labiato ; margine columellari reflexo, patente ; parietali nullo. 



Shell sinistral, perforate, ovate-conic, solid, shining, finely 

 striated, microscopically very minutely decussated, with fine 

 oblique white streaks, and narrow black spiral lines ; apex 



