Descriptions of New Species of Achatinella. 201 



Remarks. — This species differs from A. fasciata Nob. to 

 which it is closely allied, in the concave outlines of the spire, 

 in its inflated body whorl, and more expanded and reflected 

 lip. 



30. Achatinella fascial:!. 



Plate VII. Fig. 30. 



T. sinistrorsa, interdum perforata, ovato-conica, solidula, nitida, stria- 

 tula, sub lente vix decussatula, alba, fusco taeniolata ; apice subacuta, 

 alba, taenia fusca supra suturam cincta ; spira, regulariter conica ; anfr- 

 6 vel Y, convexis, non marginatis ; ultimo rotundato, ^%\ longitudinis 

 sequante ; plica columellari alba, supera, levi, subtorta ; apertura parum 

 obliqua, rotundato-ovali, intus alba, interdum pallide fusca infra exter- 

 nas fascias ; perist. albo, sub-incrassato, antice subreflexo ; margine co- 

 lumellari reflexo, vix adnato ; parietali nullo. 



Shell sinistral, sometimes perforate, ovate-conic, solid, shining^ 

 finely striated, microscopically very minutely and faintly decus- 

 sated, white, with brown bands ; apex subacute, white, with a 

 brown line above the suture ; spire regularly conical ; whorls 

 6 or 7, convex, not margined ; the last rounded, equal to T 6 /o of 

 the length ; columellar fold white, superior, slightly developed, 

 moderately twisted ; aperture somewhat oblique, roundly oval, 

 white within ; the bands sometimes appear in pale brownish 

 stripes on the inner surface ; peristome white, slightly thick- 

 ened, subreflected anteriorly ; with columellar margin reflected, 

 scarcely aclnate ; parietal margin wanting. 



Average length 0.8T inches (22 mill.) ; greatest length 0.97 

 inch (25 mill.) ; breadth 0.45 inch (11£ mill.). 



Length of aperture, 0.39 inch (10 mill.). 



Average weight 6.80 grains ; greatest weight 9.00 grains ; 

 least weight, 6.00 grains. 



Var. o. — Thicker and more elongate, with dark brown or 



