Original Descriptions of Achatinel/a. 43 



letely plaited ; aperture oblique, truncately oval, light brown 

 within ; peristome scarcely thickened within ; with external mar- 

 gin anteriorly reflected, arcuate ; coluniellar margin dilated, not 

 appressed ; parietal margin wanting. 



Length 0.76 in. ( 19 1-3 mill. ), breadth 0.42 in. ( 10 2-3 mill.). 



Length of body w^horl 0.53 in. (13 1-2 mill.). 



Weight 2.50 grains. 



Remarks. Somewhat resembles A. biiddii Newc, in style of 

 coloring, but lacks the black tip of that species, and decidedly 

 differs in the refiecfled lip, and deeply perforated umbilicus. 



Hab; Hawaiian Ids. — Gk. Niu. 



51. Achatinella fusco^ona vSmith. 



A. fusco'iDia Sni. P. Zool. Soc. London. If573, p. 76; pi. ix. fig. g. 



Testa sinistrorsa, ovato-conica, perforata, parum nitida, incrementi lineis 

 et transversim (sub lente) miniitissime striata, albida, plusve niinusve dilute 

 fusco oblique strigata, transversimque obscure lineata vel zonata ; sutura dis- 

 tinctc fusco marginata, aiifract. 6 1-2, convexi, ult. amplus ; apex nigrescens; 

 apertura alba; perist. tenue, intus leviter limbatum ; plica coluniellaris 

 valida, rubescens ( interdum albida). Long. 21, diam. 12 mill. 



Var. Testa elongato-conica ; sutura zona latissima fusca cincta. Long. 

 23 1-2, diam. 11 mill. 



Shell sinistral, ovately conic, perforate, hardly shining, trans- 

 versely and very minutely striated with lines of growth, whitish, 

 more or less obliquely striped with light brown, and transverse!}' 

 obscurely lined or banded ; suture distin(5lly margined with brown, 

 whorls 6 1-2, convex, the last broad; apex blackish; aperture 

 white ; lip thin, lightly edged within ; coluniellar fold strong, red 

 (sometimes whitish ) . 



Var. Shell elongately conic ; suture encircled with a very 

 broad brown band. 



Affinities. It is intermediate between A. adusta Rve. and 

 A. buddii Newc. 



Hab. Makiki, on Oahu ; two or three specimens have been 

 found in Palolo. 



Mr. Baldwin places this shell with A . buddii Newc. It is also 

 very near to A. pexa Gk. Dr. Cooke found the type shell to be a 

 white variety of A. buddii. 



52. Achatinella augusta Smith. 



A. auguila Sni. P. Zool. Soc. London, 1S73, p. 74: pi ix, fig. 7. 



Testa sinistrorsa, ovato-conica, nitida, incrementi lineis et transversim 

 exilissimc striata, viridis, saturate viridi strigata lineisque spiralibus viridi- 

 bus rutisque obscuris cincta, infra suturam albam zona flava ornata ; sutura 



