Original Descriptions of AchatincUa. 187 



Hab. Sandwich Ids. — Frick. 



May be a variety of A. sordida Newc. from the Waianae Mts., 

 Oahu. 



351. Achatinella crassidentata Pfeiffer. 



A. crassidentata Pfr. P. Zool. Soc. London, 1855, p. 6, pi. xxx, fig. 23. 



A. testa imperforata, sinistrorsa, soliilula, striatula, parum iiitida, alba, 

 fasciis non niillis luteis oriiata, iiiterdum basi vireiiti-liitea ; spira conica, 

 apice obtiisula; sutura marginata; anfr. 5 1-2, convexiusculis, ultimo 3-7 longi- 

 tudinis subtequante, basi rotundato; apertiira diagonali, sinuato-semiovali; 

 plica coliimellari siipera, crassissima, dentiformi; perist. simplice, margine 

 externo acuto, leviter arciaato, columellari brevi, angusto. Long. 20, diam. 

 II mill. 



Shell imperforate, sinistral, somewhat solid, slightl}^ striate, 

 hardly shining, white, ornamented with several 3'ellowish bands, 

 sometimes greenish yellow on the base ; spire conical; apex some- 

 what obtuse ; suture marginate ; whorls 51-2, slightl}- convex, 

 with the last nearly equal to 3-7 of the length, rotundate at the 

 base; aperture diagonal, sinuatel}' semioval; columellar fold high, 

 v^er}' thick, tooth-like; lip simple, external margin acute, slightly 

 arcuate, columellar margin short, narrow. 



Hab. Sandwich Ids. — Frick. Palolo to Waialae, Oahu. 



This shell agrees with A. diversa Gk. 



352. Achatinella hybrida Newcomb. 



A. hyhiida Newc. P. Zool. Soc. L,ondon, 1853, p. 147, pi. xxiii, fig. 52. 



Shell dextral, conical; whorls 6, rounded, margined above, 

 the last somewhat inflated; suture well impressed; columella white 

 or brownish, terminating in a twisted plait; aperture ovate, white; 

 lip simple, thickened within ; striae longitudinal, fine ; colour of 

 shell green, or brown on the last whorl, above white, with fine 

 longitudinal veins of the colour of the epidermis. Long. 18-20, 

 lat. 10-20 poll. 



Hab. Kolau, Oahu. — Newc. 



This shell is a manufacflured variety from A. produda Rve. 



353. Achatinella macrostoma Pfeiffer. 



A. i>iariost(j)na I'fr. I'. Zool. Soc. London, 185.5, p. 2, pi. xxx, fig. 6. 



A. testa dextrorsa, imperforata, conico-ovata, .solidula, levissime stri- 

 atula. nitifla, fulva, fasciis non nullis pallidis et fuscis variegata; spira conica, 

 obtiisula; sutura submarginata; anfr. 5 1-2, modice convexis, ultimo spiram 

 urquante, superne turgido, medio attenuato, basi rotundato; apertura ])arum 

 obliqua, amyila, obauriformi, intus alba; perist. alljo, leviter labiato, mar- 

 gine dextro expanso, superne valde curvato, columellari dilalato, adnato. 

 Long. 21 1-2, diam. 11 mill. 



