20 Original Descriptions of Achatinella . 



spira vix breviore ; plica columellari crassa, tuberculiformi, pallide lilacea ; 

 apertura diagonali, sinuato-semicirculari ; perist. recto, nigro-fusco, limbato, 

 intiis crenato-labiato. Long. 19 t-2, diam. 13 mill. 



Shell sinistral, imperforate, globosely conical, solid, roughly 

 striate, rather shiny, whitish; spire concavely conical, apex acute; 

 suture deeply margined ; whorls 51-2, the upper plain, the follow- 

 ing convex, the last inflated, hardly shorter than the spire ; colu- 

 mellar fold thick, tuberculiform, pale lilac ; aperture diagonal, 

 .sinuously semicircular ; lip erect, blackish brown, margined, crenu- 

 lately thickened within. 



Hab. Oahu. — Newc. Nuuanu. 



FORBEvSIANA GROUP. 

 16. Achatinella forbesiana Pfeiffer. 



A . forbesiana Pfr. P. Zool. Soc. London, is,s5. P- ,S ; pl- xxx, fig i(S. 



A. testa subperforata, dextror.sa vel sinistrorsa, ovato-conica, solida, con- 

 ferte striatula, nitida, grisea a'cI albida, fa.scii.s crebris grisei.s vel fuscis, 

 ssepe conflueiitibus picta ; spira exacte conica, sur.sum alba, apiculo nigro 

 acutiu.sculo ; sutura marginata ; anfr. 6, convexiiisculis, ultimo spira paulo 

 breviore, rotundato ; apertura obliqua, obauriformi ; plica columellari supera, 

 valida, nodiformi ; perist. fusculo vel carneo limbato, margiue externo 

 breviter expanso, columellari crasso, subadnato. Long. 19, diam. 10 1-2 mill. 



Shell subperforate, dextral or sinistral, ovately conical, solid, 

 closely striated, shining, gray or whitish, marked with numerous 

 gray or brown bands, often confluent ; spire markedly conical, 

 white above, with a somewhat acute black-tipped apex ; suture 

 margined ; whorls 6, somewhat convex, the last a little shorter 

 than the spire, rounded ; aperture oblique, obauriform ; columellar 

 fold high, strong, tuberculiform; lip margined with brownish or 

 flesh color, with the external edge slightly expanded, thickened 

 at the columella, subadnate. 



Hab. Waialua, Oahu. — Bald. Near Waipio. 



17. Achatinella coniformis Gulick. 



Aprx coniforwh Gk. P. Zool. ,Soc. London, 1873, p. So; pL ix, fig. 2,^. 



Testa sinistrorsa (interdum dextrorsa), globoso-conica, nitida, incre- 

 menti lineis oblique (baud spiralibus) striata, brunnea, dilute brunneo stri- 

 gata, lineis spiralibus pluribus albidis indistincte cincta ; sutura saturate 

 brunneo marginata; spira leviter concava ; anfract. 6 1-2, primi 3 1-2 con- 

 vexiusculi, albidi, caeteri convexi ; apertura recede ns, alba ; perist. paulu- 

 lum dilatatum intusque incra.ssatum, margine dilute ro.seo (vel brunneo) 

 tinctum ; plica columellaris valida. Long. 18, diam. 12 mill. 



Var. Testa sinistrorsa, cinereo-fusca, albo strigata, et lineis paucis Spi- 

 ralibus albis cincta ; sutura brunnea. 



