1895.] NATURAL SCIENCES OF PHILADELPHIA. 223 



conic, apex rather acute; surface shining, marked with fine growth 

 lines, and under a lens decussated hy very delicate, close, spiral 

 striae. The shell of an ashy gray color, irregularly distributed 

 over the surface, giving it a mucid appearance; with a dark brown 

 baud at the periphery which becomes sutural, extending both above 

 and below the suture, and a small patch of the same color around 

 the umbilicus ; also with a few inconspicuous brown lines on the 

 base and above the periphery, the latter continued above ; apical 

 whorls generally denuded of cuticle, and then of a light chestnut 

 color. Whorls 7, slightly convex; suture moderately impressed. 

 Aperture oblique, oval, livid white within; peristome acute, slightly 

 thickened within, expanded, basal and columellar margins nar- 

 rowly reflexed, light brown on both face and the reverse ; colu- 

 mella tinged with brown, terminating in a strong, plaited, project- 

 ing tooth. 



Length, 21 2 ; diam. 11 2 mm. 



Habitat, Makakupaia, Island of Molokai. 



This species is found in the region intervening between the habi- 

 tats of A. Redfieldii Newc. and A. compta Pse. ; and it has char- 

 acteristics connecting it with each of these species. It is smaller 

 than either, and differs from both in the coloration, particularly 

 from the former in the absence of the white sutural band. 



Aohatinella Anceyana, n. sp. PI. X, fig. 16. 



Shell dextral, imperforate, rather thin, ovately conical, apex ob- 

 tuse; surface shining, striated with fine growth lines, under 

 a lens exhibiting a beautiful pattern of close, delicate, decussating, 

 spiral striae, which extend to the very apex. Color reddish brown, 

 becoming paler towards the summit ; with two yellow bauds, a 

 broad one encircling the umbilical region, a narrow one at the 

 periphery, the latter margined above with a delicate white line, 

 which is continued on the spire just above the suture and becomes 

 lost on the third whorl; also with £ narrow white line revolving 

 below the suture to the very tip of the apex. Whorls 5, convex, 

 not marginate ; suture distinctly impressed. Aperture a little 

 oblique, oval, white, distinctly exhibiting the dark coloring of the 

 exterior; peristome acute, slightly thickened within, the coloring of 

 the outside appearing on the inner edge; columella brown, termi- 

 nating iu a well developed, flexuous fold. 



