Original Descriptions of Achatinclla. 171 



Shell imperforate, acuminately ovate, solid, distiiKftl}' striate, 

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

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

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

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

 ture scarceh' oblique, sinuatel}' oval ; columellar fold toothlike, 

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



Hab. Mountains of Lanai. 



Mr. Baldwin places this with A. piisilla Newc. 



309. Achatinella aurostoma Baldwin. 



A. auiostoma Bald. Xautilus, 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 finel}' 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 sparsely distributed on the other whorls; 

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

 ovate, a little oblique, of an orange-yellow color wdthin; 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. Lanai. 



310. Achatinella fraterna Sykes. 



Amastra {Laminella) fraterna Sykes. P. Malac. Soc. London, 1.S96, ii, p. 129. 



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

 convexiusculi, longitudinaliter striati, cpidermide fusco vel nigro-corneo 

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

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



Shell sinistral, ovate-turreted, thin; suture impressed; w^horls 

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

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

 large; lip erect, acute, fold moderate. 



Hab. Mountains behind Koele. — Perkins. 



311. Achatinella longa Sykes. 



Aniailra longa Sykt-s. I". Malac. Soc. London, 1H9C), p. 12S. 



Testii dextrorsa, elongata. subperforata, solida, substriata, epidermide 

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

 ultimus plus quam 1-2 altitudinis testa.' arquans ; apertura sinuato-semiovalis, 



