Orighial DescTiptioiis of Achatuiella. 57 



cincta altera supra altera peripheriam infra ; anfract. 5 1-2, convexiusculi ; 

 sutura distincte marginata, saturate fusco ligata ; apertura alba ; perist. intus 

 leviter limbatum ; plica columellaris valida, rosea. Long. 19, diam. 10 mill. 



Var. A. Testa elongatior. Long. 21, diam. 9 mill. 



V'ar. B. Testa alba, in anfr. ult. zonis angustis pluribus flavis cincta. 



Shell dextral (or sinistral) elongate-ovate-subconic, moder- 

 ateh* shining, transversely and minutely striated with lines of 

 growth, whitish, more or less striped with jello wish-olive and often 

 encircled by two pale-brown bands, the one above, the other below 

 the periphery ; whorls 5 1-2, somewhat convex; suture distinctly 

 margined, wound with dark brown ; aperture white, lightl}' edged 

 within ; columellar fold strong, rose. 



Var. A. Shell more elongate. 



Var. B. Shell white, encircled on the last whorl by many 

 narrow yellow bands. 



Affinities. It has somewhat the aspect of dextral forms of 

 A. varia Gk., but is more elongate and cylindrical. — Sm. 



Hab. Reported from Waimalu. — Sm. Nuuanu to Halawa. 



The light striped forms of A. bellula Sm. seem to come very 

 near to this shell. Named from the dark brown sutural band. 



73. Achatinella multi^jonata Baldwin. 



A. niultizonata Bald. P. Acad. Phil.. 1895, p. 215, pi. x, figs, i, 2. 



Shell dextral, imperforate, moderately solid, elongately conical, 

 apex sub acute, surface shining, striated with fine lines of growth, 

 under a strong lens showing very numerous, extremely minute de- 

 cussating striae ; apical whorls smooth, scarcely decussated ; color 

 white, variously striped with numerous dark brown lines and 

 bands, some on the base and others spiral. Whorls 6, lightly 

 marginate above, convex ; suture lightly impressed ; aperture ob- 

 lique, oval, white, the dark bands of the exterior visible within ; 

 peristome acute, thickened within, slightly expanded, white, the 

 dark lines of the exterior marked on the inner edge ; columella 

 purplish brown, terminating in a strong, oblique, tortuous fold. 

 Length i8, diam. lo mm. 



Animal when extended in motion, longer than the shell. 

 Mantle brown, lighter on the outer edge. Foot above and below 

 light brown ; posterior portion tapering. Tentacles long and 

 slender; these, with the head above, slate color. 



A great variety of transition forms occur between this species 

 and A. bellula Sm., which is found on the neighboring mountain 

 ridges of Nuuanu \'alley, and is a much larger shell. The ani- 

 mals of the two extremes are specifically different. The mantle of 



