Original Descriptions of Achatinella. 141 



lira; columella lightly plicate; aperture hardly oblique, obauri- 

 form; lip quite simple, columellar margin subreflexed, external 

 margin somewhat expanded. 



B. Brownish-yellow, striped on the upper whorls with dark 

 horn color. 



Hab. Hawaiian Ids. — Frick. 



Equals A. plicata Migh. 



232. Achatinella sulcata Pfeiffer. 



A. sulcata Pfr. P. Zool. Soc. London, 1S5S, p. 22. 



T. subperforata sinistrorsa, oblongo-turrita, solidula, striatula et liris 

 confertis, in anfr. superioribus compressis, turn rotundatis cincta, castanea, 

 nitidula; spira regularita attenuata, apice acutiuscula; sutura subsimplex; 

 anfr. fere 6 planiuscula, supremi albo-flamniulati, ultimus 2-5 longitudinis 

 subaequans, basi saccatus, saturatius castaneus; columella levissime plicata; 

 apertura obliqna, acuininato-ovalis; perist. tenue, margine colurnellari su- 

 perne dilatato, refiexo, externo expansiusculo. Long. 12 1-2, diam. 5 2-5 

 mill.; ap. 5 2-3 mill, longa, 3 1-3 lata. 



Shell subperforate, sinistral, oblong-turreted, somewhat solid, 

 slightly striated and encircled with close lirae, in the upper whorls 

 compressed, then rotundate, chestnut, somewhat shining; spire 

 regularly attenuate, apex somewhat acute; suture quite simple; 

 whorls nearly 6, almost flat; the upper white-flammulate, the last 

 nearly equal to 2-5 of the length, base saccate, dark chestnut; 

 columella very lightly plicate; aperture oblique, acuminate-ovate; 

 lip thin, columella margin dilate above, reflexed, external margin 

 somewhat expanded. 



Hab. Pohakupili. — Bald. 



Nearly related to A. plicata Migh. 



233. Achatinella canaliculata Baldwin. 



A. canaliculata Bald. P. Ac. Phila., 1895, p. 226, pi. x, figs. 2.8, 29. 



Shell sinistral, very minutely perforated, somewhat solid, 

 acuminately turreted, apex subacute; surface sculptured through- 

 out with numerous acute spiral keels, which become blunter as 

 they approach the apex, the interstices between the keels exhibit- 

 ing under a lens very delicate growth striae. Color brown, upper 

 whorls tessellated with brown and white. Whorls 6, slightly con- 

 vex, lower ones somewhat flattened at the base; suture lightly 

 impressed; aperture oblique, oval, livid white or light brown, 

 within; peristome acute, very lightly thickened within, expanded, 

 columellar margin reflected over the small perforation, margined 

 with light brown on both face and the reverse; columella very 

 slightly developed, plain and smooth. Length 14, diam. 6 1-2 mill. 



