Original Descriptions of Achatinella . 73 



convex; columellar fold central, white, strong; aperture trunc- 

 ately auriform, white within ; peristome thickened within ; with 

 external margin unre fleeted, arcuate, acute ; columellar margin 

 dilated, adnate, white ; parietal margin wanting. 



Length 0.63 in. (16 mill.), breadth 0.42 in. (10 2-3 mill.). 



Length of bod}' wdiorl 0.46 in. (11 2-3 mill.). 



Average weight 4.70 grains. 



Var. B. Without bands. 



Var. C. With one black spiral line. 



Var. D. With two broad black bands. 



Remarks. In Wahiawa, which is the metropolis of the species, 

 var. A is the most abundant ; var. B is more widely diffused, being 

 occasionally found in each of the above mentioned localities ; 

 vars. C and D are very rare ; the former approaches A. contracta 

 Nob., and the latter passes into an unusual variety of A. emersonii 

 Newc. The most nearly allied species is A. cui'ta Newc, which is 

 readily distinguished by its peculiar marking and smaller size. — Gk. 



Hab. Kalaikoa, Ahonui, Wahiawa and Helemano. — Gk. 



104. Achatinella rhodorhaphe Smith. 



A. rhodorhaphe Sm. P. Zool. Soc. London, 1873, p. 74, pi. ix, fig. 10. 



Testa sinistrorsa, breviter ovato-conica, imperforata, nitida, incrementi 

 lineis et transversirn (sublente) exilissime striata, flava, suturam infra zona 

 lata dilute rosea cincta ; anfract. 6, convexi, primi 3 albi ; sutura distincte 

 marginata ; apertura alba ; perist. margine acuto intus limbatum ; plica col- 

 umellaris valida, rosea (interdum alba). Long. 15, diam. 8 1-2 mill. 



Var. Testa flava, suturarn infra castaneo zonata. 



Shell sinistral, shortly ovate-conic, imperforate, shining, trans- 

 versely (microscopically) very feebly striated with lines of growth, 

 yellow, encircled below the suture by a broad pale rose band ; 

 whorls 6, convex, first 3 white ; suture distinctly margined ; aper- 

 ture white ; lip with margin acute, edged within ; columellar fold 

 strong, rose (sometimes white). 



Var. Shell yellow, encircled below 7 the suture with chestnut. 



Hab. Helemano and Kawailoa. — Gk. 



105. Achatinella herbacea Gulick. 



A . herbacea Gk. Ann. Lye. New York, vol. vi, 1858, p. 233, pi. viii, fig. 52. 



Shell sinistral, sometimes dextral, imperforate, ovate-conic, 

 solid, shining, striated, of a dull color ; apex rather obtuse, white; 

 spire conic, suture marginate, moderately impressed ; whorls 6, 

 convex ; columellar fold central, white, strong ; aperture truncately 



