146 Original Descriptions of Achatinella. 



embryonic whorls smooth; color reddish, with traces of a decidu- 

 ous, thin, brown epidermis; whorls 7, slightl}- convex; suture well 

 impressed; aperture elongateh' oval, a trifle oblique, rather small, 

 purplish red within; peristome simple, thin, margined with dark 

 purple; columella white with a purple tinge, flexuous, abruptly 

 terminating in a thin, slightly curved lamellar plait. Length 19, 

 diam. 9 mm. 



Hab. Konahuanui Mt. 



245. Achatinella textilis Ferussac. 



Helix {Helicteresi) textilis Fer., Voy. Freycinet. Zool.,.p. 482. 



Testa dextrorsa, ovata, vertice acuminata, striis longitudinalibus et 

 transversalibus caelata; epidermide luteo vel rufo-fugaci; anfractibus 5; ap- 

 ertura semilunata; peristomate intus incrassato; columella brevi, costa dis- 

 tincta munita; rima umbilical! vix distincta. 



Longeur, six lignes deux tiers; diametre, trois lignes trois quarts. 



Shell dextral, ovate, apex acuminate, engraved with longi- 

 tudinal and transverse striations, epidermis yellow or fugitive 

 red ; whorls 5 ; aperture semilunate ; lip thickened within ; colu- 

 mella short, furnished with a distinct fold; umbilical cleft scarcely 

 distinct. 



246. Achatinella microstoma Gould. 



A. viicroitovia Gld. P. Boston Soc, ii, 1S45, p. 28. 



T. ovata imperforata, solida, epidermide fusco-virescente; anfr. 6, ulti- 

 mo ventricoso; apertura parva, ovato-rotundata, fauce livida; labro simplici, 

 intus incrassato; columella profunde sinuosa, callo crasso obtecta ; plica 

 valida. Long. 3-5, lat. 7-20 inch. 



Shell ovate, imperforate, solid, with a brownish green epider- 

 mis; whorls 6, with the last ventricose ; aperture small, ovate- 

 rotundate, bluish; lip simple, thickened within; columella strongly 

 twisted, covered with a thick callus; fold strong. 



Hab. Nuuanu and Kalihi. 



Mr. Baldwin places this with A. textilis Fer. 



247. Achatinella undata Baldwin, 



Amastra nndata Bald. P. Acad. Phil., 1895, p. 230, pi. xi, fig. 39. 



Shell dextral, imperforate, solid, ovate; spire convexly coni- 

 cal, apex rather acute, base somewhat attenuated; surface lustre- 

 less, closely and rather evenly ribbed in the direction of the growth 

 lines, nuclear whorls finely radiateh' sulcated with prominent rib- 

 striae; color light brown and dark chestnut, alternating in irregular 

 longitudinal undulations; whorls 6, slightly convex; suture mod- 

 erately impressed; aperture a trifle oblique, sublunate, rather 



