356 FAUNA HAWAIIENSIS 



(loi) Amastra {Katiaia) knudseni Baldwin. 



Amastra knudseni Baldwin, P. Ac. Philad. 1895, p. 234, pi. xi. figs. 43, 44. 



Hab. Kauai, Halemanu (Baldwin, Perkins). A single specimen of this very 

 fine species. 



The following appear to be only MS. names : Amasti^a ferrit,ginea Baldwin, 

 Cat. Shells Hawaiian Islands, 1893, p. 9 (nom. sol.). Hab. Oahu, Ewa and Waianae 

 (Baldwin). — Amastra testndinea Baldwin, t. c. p. 10. Hab. Oahu, Ewa (Baldwin). 



Leptachatina Gould. 



Leptachatina Gould, P. Boston Soc. 11. p. 201 ; type Achatinella acuminata 

 Gould. 



It is frequently difficult to draw the line between this group and Amastra, and 

 perhaps such species as A. melampoides Pfr. { = A. ventubis Per.) may eventually be 

 transferred to Leptachatina. 



Pfeiffer proposed Labiella (Malak. Blatt. 1. 1854, p. 142) for the group with an 

 incrassated lip, such as A. labiata Newc, and perhaps it may, conchologically, form a 

 convenient section. 



The species are principally from Oahu, but an elongate and generally striate group 

 characterizes the older Islands, such as Kauai. 



(i) Leptachatina accincta Mighels. 



Achatina accincta (err. typ.) Mighels, P. Boston Soc. 11. (1845), p. 20; Reeve, 



Conch. Icon. Achatina, sp. loi. 

 nee Achatinella accincta Gould, U.S. Explor. Exped. Mollusca, pi. vii. fig. 97. 

 Achatinella gj-anifera Gulick, Ann. Lye. New York, vi. (1856), p. 185, pi. vi. 



%• '3 ; Sykes, P. Malac. Soc. London, iii. pi. xiv. fig. 5. 

 Achatinella {Leptachatina) margarita Pfeiffer, P. Zool. Soc. London, 1855, p. 206. 



Gulick admitted (P. Zool. Soc. London, 1873, p. 91) the identity of his species 

 with Pfeiffer's. If Mighels' dimensions and description are accurate, I think the above 

 identification will prove correct. The shell figured by Gould does not appear to be 

 Mighels' species. See also a note under L. grana Newc. 



Hab. Oahu (Mighels, Pfeiffer) ; Keawaawa (Gulick). 



