Descriptions of N'ew Species of Achatinella. 247 



fusca, fusco obscure bifasciata, infra suturam alba ; apice obtusula, 

 castanea ; spira, convexo-conica ; sutura marginata, modice impressa, ; 

 anfr. 6^-, convexis ; plica columellari mediana, alba, valida ; apertura 

 truncato-auriformi, intus albida ; perist. intus incrassato ; marginc 

 externo antice subreflexo, arcuato, albo vel fusco ; columellari refiexo, 

 patente, albo ; parietali tenuissimo. 



Shell dextral, perforate, ovate, solid, shining, striated, ash, or 

 ash-brown, with two obscure brown bands, white beneath the 

 suture; apex rather obtuse, chestnut-brown; spire convexly 

 conical ; suture marginate, moderately impressed ; whorls 6£, 

 convex ; columellar fold central, white, strong ; aperture trun- 

 cately auriform, white within ; peristome thickened within ; 

 with external margin slightly reflected anteriorly, arcuate, 

 white, or brown ; columellar margin reflected, detached, white ; 

 parietal margin very thin. 



Length 0.80 inch (20£ millim.); breadth 0.44 inch (11} millim.). 



Length of body whorl 0.55 inch (14 millim.). 



Average weight 7.00 grains. 



Station. — On trees. J. T. G. ! 

 Habitat. — Kahana, Oahu. J. T. G. ! 



Remarks. — Sinistral specimens are sometimes found which 

 resemble A. obliqua, but are readily distinguished by the 

 darker coloring around, and upon the lip. I have from 

 Hauula a few specimens which seem to belong to this species. 

 Some of them are nearly white. 



65. Achatinella spadicea. 



Plate VIII. Fig. 65. 



T. sinistrorsa, imperforate, conico-ovata, solida, nitida, striata, 

 castanea, fascia 1 spirali alba, suturali cincta ; apice obtusula ; spira 

 convexo-conica ; sutura marginata, modice impressa, ; anfr. 6, convexis ; 

 plica columellari mediana, albida, valida ; apertura truncato-auriformi, 

 subangulata, intus alba, ; perist. intus incrassato, nigro-fasco ; margine 



FEBRUARY, 1858. 1§ Ann. Ltc. Nat. Hist. Vol. VI. 



