Oriirinal Descripiions of AcliatiiuIIa. iii 



Animal when extended in motion longer than the shell. Mantle 

 densely black with minute brown flecks and a broad yellowish 

 band encircling the outer edge. Tentacles and superior portion of 

 foot brown with a slight slate tinge ; under portion of foot light 

 brown. Front above covered with light granulations. 



I have before me over five hundred examples of this species, 

 which are without variety in color or shape. The peripheral 

 chestnut band is a constant feature. It may be readily distin- 

 guished from A. tappaniayia Adams, by its more slender form and 

 convex spire, by the sub-angulated periphery, flattened base, and 

 more polished surface. The color of the animals is also very differ- 

 ent ; and the habitats are separated by twenty-five miles expanse 

 of low dry land, which is destitute of forest, and molesting life. 

 In character of shell and animal it has some affinity with the pre- 

 ceding species ; and, considering the remote habitats, the two may 

 be regarded as distinct, but allied species. — Bald. 



Hab. Makawao to Huelo. — Bald. 



179. Achatinella dolei Baldwin. 1/ 



A. dolci Bald. P. Acad. Phil., 1^595. p. 221, pi. x. fig,s. 17. iS. 



Shell sinistral, minutely perforated, somewhat solid, acumi- 

 nately ovate-conic, apex acute ; surface shining, marked with deli- 

 cate incremental striae, under a lens exhibiting extremely close, 

 minute, decussating spiral striae; nuclear whorls faintly cross-lined. 

 Color white, encircled below the periphery with a brownish black 

 band, and at the periphery and above with more or less numerous, 

 delicate, chestnut, spiral lines, which become fainter on the middle 

 whorls and obsolete above. Whorls 6 1-2, narrowly margined 

 above, convex ; the last somewhat inflated, roundly angulated at 

 the periphery and flattened on the base ; suture deeply impressed. 

 Aperture oblique, roundly ovate, flattened on the basal margin, 

 white, exhibiting the brown markings of the exterior ; peristome 

 acute, angled at the periphery, slightly thickened within, expand- 

 ed, basal and columellar margins narrowly reflexed ; columella 

 terminating in a long, flexnous, white plait. Length 24 1-2, 

 diam. 14 mm. 



Animal when extended in motion longer than the shell. 

 Mantle intensely black with a broad outer margin of yellow and a 

 conspicuous orange spot in the center of the margin. Foot taper- 

 ing behind, above and below light yellow. Tentacles long and 

 slender, light slate. Head above slightly granulated. 



We found this .species very plentiful at the above locality, in 

 the humid forests of the exterior slope of Haleakala crater, at an 

 altitude of 7000 feet above sea level. The dark band below the 

 periphery is a constant feature. The nearest allied species is 



