Descriptions of New Species of Achatinella. 251 



Length of body whorl 0.48 inch (12 millim.). 

 Average weight 4.50 grains. 



Station. — On trees. J. T. G. ! 



Habitat. — Kahana, Kaawa, and "Waikane, Oahu. J. T. G. ! 

 "Waiolu, Oahu. J. S. Emerson. 



Var. b. — With black spiral lines. 



Remarks. — I am in doubt concerning the limits of variation 

 of this species. Var. b. may be distinct. 



69. Achatinella nymplia. 



Plate VIII. Fig. 69. 



T. dextrorsa, imperforata, oblongo-ovata, solida, nitida, levissime striata, 

 flava. vel castanea, interdum fusco-lineata ; apice subacuta ; spira convexo- 

 conica ; sutura anguste marginata, modice impressa ; anfr. 6, convexius- 

 culis; plica columellari mediana, alba, valida ; apertura truncato-anri- 

 formi, intus alba ; perist. albo-labiato ; margine externo vix reflexo, 

 arcuato ; columellari dilatato, adnato ; parietali nullo. 



Shell dextral, imperforate, oblong-ovate, solid, shining, very 

 lightly striated, yellow or chestnut, sometimes lined with brown ; 

 apex subacute; spire convexly conic; suture narrowly margined, 

 moderately impressed ; whorls 6, somewhat convex ; colu- 

 mellar fold central, white, strong; aperture truncately auriform, 

 white within ; peristome white, strongly labiate ; with external 

 margin scarcely reflected, arcuate ; columellar margin dilated, 

 adnate ; parietal margin wanting. 



Length 0.73 inch (18£ millim.); breadth 0.40 inch (10 millim.). 



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



Average weight 6.30 grains. 



Station. — On the leaves of the Naupaka (Sccevola Chamis- 

 soniand) and other trees. J. T. G. ! 



