320 AMASTBA. 



an expert in Achatinellidae, but the published descriptions are 

 inconclusive. 



111. A. AMICTA Smith. PL 43, fig. 10. 



" Shell dextral, thin, ovate-conic, subperf orate, hardly 

 glossy, rugosely striate with growth-lines; purplish beneath 

 an olivaceous, rough epidermis. Whorls 6, convex, suture 

 somewhat constricted but not margined. Aperture small, 

 slightly over one- third the total length, purplish within; 

 peristome thin. Columella nearly straight, provided with a 

 small oblique fold. Length 13, diam. 6% mm." (Smith). 



Sandwich Is. (Brit. Mus.). 



Amastra amicta SMITH, P. Z. S., 1873, p. 86, pi. 10, f . 20. 

 SYKES, Fauna Hawaiiensis, p. 333. 



" This species is remarkable for the roughness of the epi- 

 dermis, which is generally worn away from the front of the 

 body- whorl near the aperture" (Smith). 



" It appears to me quite distinct " [from petricola] 

 (Sykes). 



Unknown to us except by the original description and fig- 

 ure, here reproduced. Cf. A. affinis and A. nana. 



112. A. LINEOLATA Newcomb. PI. 45, fig. 9. 



Shell dextral, elongate-turrited, shining, covered with a 

 yellowish epidermis; whorls 6, ventricose, last one thickly 

 marked with longitudinal umber-colored zigzag lines; suture 

 simple; aperture ovate; 'Columella with an oblique plaited 

 tooth. Length .5, breadth .22 inch (Newcomb). 



Maui or Hawaii. 



Achatinella lineolata NEWC., Ann. Lye. Nat. Hist, of N. Y., 

 vi, May, 1853, p. 29 (Maui) ; P. Z. S., 1853, p. 140, pi. 23, f. 

 29 (Hawaii). Amastra L, PEASE, P. Z. S., 1869, p. 650. 



Newcomb 'gave the locality Maui in his first paper, Hawaii 

 in the second. The characters of the shell so far as made 

 known, seem not unlike the affinis series of Maui, and not like 

 any Hawaiian species, in which zigzag lines are unknown. 

 We do not know that any subsequent investigator has met 

 with the species, which is thus imperfectly known and of un- 

 certain position. Hartman considered it a Leptachatina; but 



