Descriptions of New Species of Achatinella. 233 



Remarks. — This species bears the same relation to A. livida 

 Swains., that A. recta ISTewc. bears to A. curta Newc. 



52. Achatinella herbacea. 



Plate VIII. Fig. 52. 



T. sinistrorsa, interdum dextrorsa, imperforata, ovato-conica, solida, 

 nitida, striata, viridi ; apice obtusula, alba ; spira conica ; sutura mar- 

 ginal, modice impressa ; anfr. 6, convexis ; plica, columellari mediana, 

 alba, valida, ; apertura truncato-auriformi, intus alba ; perist. intus sub- 

 incrassato ; margine externo recto, arcuato, acuto ; columellari dilatato, 

 adnato, albo ; parietali tenuissimo. 



Shell sinistral, sometimes dextral, imperforate, ovate-conic, 

 solid, shining, striated, of a dull green color; apex rather 

 obtuse, white ; spire conic, suture marginate, moderately im- 

 pressed ; whorls 6, convex ; columellar fold central, white, 

 strong ; aperture truncately auriform, white within ; peristome 

 slightly thickened within ; with external margin unreflected, 

 arcuate, acute ; columellar margin dilated, adnate ; parietal 

 margin very thin. 



Length 0.71 inch (18 millim.) ; breadth 0.41 inch (10f millim.). 



Length of body whorl 0.50 inch (13 millim.). 



Average weight 4.40 grains. 



Station. — On the leaves of the Pua, Ahakea, and Ohawai 

 {Lobelia G?*imesiana). 



Habitat. — In the forests between the streams of "Waimea and 

 Kawailoa, Oahu. J. T. G. ! 



Var. b.— With a black sutural band ; columellar fold usu- 

 ally white, sometimes lilac. 



Var. c. — Yellow, with smoother surface, approaching A. 

 recta Newc. 



Remarks. — Dr. Xewcomb has placed this with A. curta 

 Newc, but I consider it quite distinct. 



About a fifth of my specimens are dextral. 



