Original Descriptions of Achatinella. 57 



cincta altera supra altera peripheriam infra ; anfract. 5 1-2, convexii:sculi ; 

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

 leviter limbatuni ; plica columellaris valida, rosea. Long, ig, diam. 10 mill. 



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



Var. B. Testa alba, in anfr. ult. zonis angustis pluribus flavis cincta. 



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

 ately shining, transversely and minntely striated with lines of 

 growth, whitish, more or less striped with yellowish-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 browm ; aperture white, lightly edged 

 within ; columellar fold strong, rose. 



Var. A. Shell more elongate. 



Var. B. Shell white, encircled on the last whorl b}' many 

 narrow j-ellow bands. 



AfiSnities. It has somewhat the aspect of dextral forms of 

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



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



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

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



73. Achatinella multi^onata Baldwin. t^ 



.-I. multizonata Bald. P. Acad. Phil., 1895, p. 215, pi. x, figs, i, 2. 



Shell dextral, imperforate, moderatelj^ 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 q^<\^q^ ; columella 

 purplish brown, terminating in a strong, obliqtie, torttious fold, 

 lyength 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. belltda Sm., which is found on the neighboring mountain 

 ridges of Nuuanu Valley, and is a much larger shell. The ani- 

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



