154 Original Descriptions of Achaiinclla. 



B. Waiaiiae Mountain Shells. 



265. Achatinella spirisona Ferussac. 



Achatina spirizona F6r. Hist. Moll., ii, pt. 2, p. 196, pi. civ, figs. 14, 15. 



A. testa ovato-acuta, longitudinaliter striata, nigricanti brunnea, fascia 

 carnea vel fulvida ad suturam ornata; spira conico-acuta; anfractibus sep- 

 tem planiusculis, lente accrescentibus, ultimo infiato, 2-5 longitudinis vix 

 superante, angusto, angulo antice evanescente; apertura oblongo-ovali, intus 

 livida; peristomate simplici, acuto ; columella medio plica acuta, contorta, 

 lamelliformi, albida instructa. 24X13 mill. 



Shell ovate-acute, longitudinally striate, blackish brown, orna- 

 mented at the suture by a flesh-colored or tawny band; spire conic- 

 acute ; whorls seven somewhat flat, slowly increasing, the last in- 

 flated, scarcely more than 2-5 of the length, contracted, with an angle 

 disappearing antically; aperture oblong-ovate, bluish within; lip 

 simple, acute; columella furnished at the middle with an acute, 

 twisted lamelliform, whitish fold. 



Hab. Mt. Kaala. 



266. Achatinella acuta Swainson. 



A. acuta Swain. Zool. 111., iii, p. 99, fig. 3, 1832. 



A. testa ovato-oblonga, castanea, fascia marginali fulva; spira longius- 

 cula, apice acuto, nigro. 



Shell ovate-oblong, chestnut, with a marginal fulvous band; 

 spire somewhat lengthened, acute, the tip black. 



Shell somewhat pyriform; the spire being pointed, and con- 

 siderably longer than the aperture. The colour is a deep reddish 

 chestnut, the suture having a marginal band of fulvous white, 

 but without any groove. The apex is blackish, the pillar twisted, 

 and but slightly thickened. 



Hab. Mt. Kaala. 



Dr. Newcomb places this with A. spirizona Fer. 



267. Achatinella chlorotica Pfeiffer. 



A. chlorotica Pfr. P. Zool. Soc. London, 1855, p. 203. 



A. testa subperforata, ovato-conica, solida, ruguloso-striata, albida, epi- 

 dermide virente strigatim variegata; spira conica, acutiuscula, anfr. 6, superis 

 convexiusculis, penultimo turgido, ultimo 2-5 longitudinis subaequante, ro- 

 tundo; apertura obliqua, truncato-ovali, intus alba; plica colum. supera, 

 levissima, fere nulla; perist. simplice, recto, margine colum. parum dilatato, 

 sublibero. Long. 18, diam. 10 1-2 mill. 



