Origi7ial Descriptions of Achatinella. 171 



Shell imperforate, acuminately ovate, solid, distinctly striate, 

 epidermis yellowish, variously banded with brown, or often en- 

 tirely covering a light band ; spire inflated, near the acute apex 

 attenuate; suture pale ; whorls 6, the first flat, the penultimate 

 moderately convex, the last nearly equal to 3-7 of the length; aper- 

 ture scarcely oblique, sinuately oval ; columellar fold toothlike, 

 subacute, white; lip simple, erect, columellar margin adnate. 



Hab. Mountains of Lanai. 



Mr. Baldwin places this with A. pusilla Newc. 



309. Achatinella aurostoma Baldwin. 



A. aurostoma Bald. Nautilus, x, 1896, p. 31. 



Shell dextral, imperforate, solid, elongately ovate, spire conical, 



apex subacute; surface lustreless, striated with somewhat irregular, 



coarse growth striae; the embryonic whorls finely radiately sulcated; 



color light brown, apex dark chestnut ; the lower whorls covered 



with a black fugacious epidermis which is generally dense on the 



last whorl and more sparsel}- distributed on the other whorls; 



whorls 61-2, somewhat convex; suture well impressed; aperture 



ovate, a little oblique, of an orange-yellow color within; peristome 



simple, acute, not thickened within, extremities united by a thick, 



orange-tinted, parietal callosity; columella orange-yellow, flexu- 



ous, abruptly terminating in a thin, slightly curved lamellar plait. 



Length 25, diam. 12 mm. 



» 

 Hab. L,anai. 



310. Achatinella fraterna Sykes. 



Amastra (Laniinella) fraterna Sykes. P. Malac. Soc. London, 1S96, ii, p. 129. 



Testa sinistrorsa, ovato-turriformis, tenuis; sutura impressa; anfr. 6 1-2-7, 

 convexiusculi, longitudinaliter striati, epidermide fusco vel nigro-corneo 

 induti; apertura ovata, mediocris; peristoma rectum, acutum, lamina medi- 

 ocri. Long. 10, diam. max. 5.5 mm. 



Shell sinistral, ovate-turreted, thin; suture impressed; whorls 

 6 1-2-7, somewhat convex, longitudinally striate, covered with a 

 brown or blackish horn-colored epidermis ; aperture ovate, not 

 large; lip erect, acute, fold moderate. 



Hab. Mountains behind Koele. — Perkins. 



311. Achatinella longa Sykes. 



Amastra longa Sykes. r. Malac. Soc. London, 1896, p. 128. 



Testa dextrorsa, elongata, subperforata, solida, substriata, epidermide 

 nigro-fusco induta, apice acutiusculo; sutura simplex; anfr. 7, modice plani, 

 ultimus plus quam 1-2 altitudinis testae aequans ; apertura sinuato-semiovalis, 



