252 Descriptions of JVew /Species of Achatinetta. 



Hahitat. — Ahonui, "Wahiawa, Helemanu, Kawailoa, and 

 Waimea, Oabu. J. T. G. ! 



Remarks. — Helemanu is the metropolis of the species, but 

 it is sometimes found in the other valleys above mentioned. 



It has been confounded with A. recta Newc, which belongs 

 to a very distinct group. 



To. Achatinella liinbata. 



Plate VIII. Figs. 70 a and 10 b. 



T. dextrorsa, imperforata, conica, solida, nitida, striata, intcrdum 

 rugosa, viridi vel flava ; apice obtusa, rosea ; spira conica ; sntura mar- 

 ginata, nigra, raodice impressa ; anfr. 6, convexis ; ultimo subangulato ; 

 plica colnraellari mediana, alba, valida ; apertura subtetragono-auriformi, 

 intus alba ; perist. nigro, intus snbincrassato ; margine externo antice 

 subreflexo, substricto ; coluraellari dilatato, adnato ; parietali nnllo. 



Shell dextral, imperforate, conic, solid, shining, striate, some- 

 times rugose, green or yellow ; apex rose, frequently faded in 

 mature specimens ; spire conic ; suture margined, black, mode- 

 rately impressed; whorls 6, convex; the last subangulated ; 

 columellar fold central, white, strong; aperture rather rectan- 

 gularly auriform, white within ; peristome black, slightly thick- 

 ened within ; with external margin slightly reflected anteriorly, 

 somewhat compressed laterally; columellar margin dilated, 

 adnate ; parietal margin wanting. 



Length 0.76 inch (19* millim.) ; breadth 0.44 (11} millim.). 



Length of body whorl 0.50 (13 millim.). 



Average weight 6.70 grains. 



Station. — On the Pua, Ahakea, Hao, Naupaka (Scatvola 

 Cha?nisso?iiana) and Ohia (Eugenia Malaccensis). 

 Habitat. — Ahonui and Kalaikoa, Oahu. J. T. G. ! 



Remarks. — It differs from A. melanostoma Newc. in being 



