226 Descriptions of New Species of Achatinella. 



Var. b. — Of a burnt yellow color. 



Var. c. — With one or more obscure brownish spiral lines. 



Remarks. — The shell figured is variety b, which is the most 

 attractive in coloring, though not the most abundant. 



46. Achatinella trilineata. 



I Plate VII. Fig. 46/ 



[• T. sinistrorsa, imperforate, ovato-comca, solida, nitida, striatals, alba, 

 aigro trifasciata, basi flava vcl viridi ; apicc obtusula ; spira conica, 

 leviter convexa ; sutura anguste marginata, modice impressa ; anfr. 6£, 

 convexiusculis ; plica columellari mediaua,alba vel rosea, valida; apertura 

 ti'uncato-auriformi, intus alba ; perist. intus incrassato ; margine externo 

 recto, arcuato, acuto ; columellari dilatato, adnato ; parietali nullo. 



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

 striated, white above, yellow or green at the base, with three 

 black bands, one sutural, one entering the aperture, and the 

 other between the two, revolving just above the suture ; apex 

 somewhat obtuse ; spire conical, slightly convex ; suture with 

 narrow margin, moderately impressed ; whorls 6£, rather con- 

 vex ; columellar fold central, white or rose, strongly developed ; 

 aperture truncately auriform, white within; peristome thick- 

 ened within ; with external margin unreflected, arcuate, acute ; 

 columellar margin dilated, adnate ; parietal margin wanting. 



Length 0.85 inch (21| mill.) ; breadth 0.48 inch (12 mill.). 



Length of body whorl 0.59 inch (15 mill.). 



Average weight 8.60 graius. 



Station. — On the Kukui, and other trees. J. T. G. ! 



Habitat. — Palolo, Waialae, Wailupe, and Niu, Oahu. J. 

 T. G.! 



