Original Descriptions of Achatinella . 147 



small, white within; peristome acute, slightly thickened within; 

 columella white flexuous, abruptly terminating in a thin, slightly 

 arched lamellar plait. Length 17, diam. 12 mm. 



Hab. Nuuanu. 



248. Achatinella badia Baldwin. 



Amasira badia Bald. P. Ac. Phil., 1895, p. 230, pi. xi, fig. 40. 



Shell dextral, imperforate, rather thin, elongately ovate-conic; 

 surface shining, sculptured with delicate, rather close thread-like 

 rib-striae in the direction of the growth lines; embryonic whorls 

 radiately sulcated; color dark chestnut-brown, with light brown 

 zigzag or undulating lines and markings; whorls 61-2, slightly 

 convex; suture moderately impressed; aperture oval, a trifle ob- 

 lique, livid white within, showing the brown color of the exterior; 

 peristome acute, very lightly thickened within; columella white, 

 flexuous, abruptly terminating in a thin slightly arched lamellar 

 plait. L,ength 20 1-2, diam. 10 1-2 mm. 



Hab. Ewa. 



249. Achatinella antiqua Baldwin. 



Amastra antiqua Bald. P. Ac. Phil., 1895, p. 233, pi. xi, fig. 47. 



Shell fossil, dextral, narrowly but deeply perforated almost to 

 the apex; solid, elongately ovate, apex subacute; surface sculptured 

 with rude irregular lines of growth, apical whorls smooth; color 

 of living shell unknown; whorls 6, convex; suture well impressed; 

 aperture a trifle oblique, sublunate; peristome thickened within, 

 columellar margin aduate, slightly expanded over the umbilicus, 

 extremities somewhat converging and united by a thick parietal 

 callosity ; columella flexuous, terminating in a narrow plait. 

 Length 20, diam. 12 mm. 



Hab. Ewa. 



250. Achatinella peasei Smith. 



Amastra peasei Sm. P. Zool. Soc. London, 1S73, p. 86, pi. x, fig. 13. 



Testa dextrorsa, globoso-ovato-conica, subperforata, nitidiuscula, incre- 

 ment lineis leviter striata, epidermide pertenui induta; anfract. 6, prirni 4 

 fusco-rubescentes convexiusculi, pennltimus rnagnus inflatus ultimusque 

 palidiores; spira supra anfract. penult, subito in conum producta; sutura 

 simplex; apertura parva, spiram non tequans, subquadrata, intus rubescens; 

 perist. tenue; columella recta, leviter reflexa, rimam parvam fere tegens, 

 plica tenui subbasali munita, labroque callo pertenui juncta. Long. 17, 

 diam. 10 mill. 



Shell dextral, globose-ovate-conic, subperforate, somewhat 

 shining, lightly striate with lines of growth, covered by a very thin 

 epidermis; whorls 6, the first 4 brown-reddish somewhat convex, 



