l/ 



156 Original Descriptions of Achatinella. 



1/ 370. Achatinella cylindrica Newcomb. 



A. cylindrica Newc. P. Zool. Soc. London, 1S53, p. 134, pi. xxii, fig. 11. 



Shell dextral, elougately cylindrical, tapering to a point at the 

 summit; whorls 7, slightly rounded; suture moderate; aperture 

 oblong-ovate; columella terminating in a flexuous tooth; surface 

 of shell longitudinally strongly striate, of a light horn color, en- 

 circled with numerous small bands. Long. 16/20, lat. 6/20 poll. 



This species, with the following, are found, like their nearest 

 analogues, on the ground, viz.: A. porphyrea and spirizona, which 

 latter species, by almost insensible gradations, passes into A. turri- 

 tella, a shell apparently of quite a different type. — Newc. 



Animal light gray, marbled with dusk}- triangular patches, 

 mantle light gray, tentacles dark, granulations strong. A dorsal 

 and two obscure lateral white lines extend from the head along the 

 animal. — Newc. 



Hab. Near Mt. Kaala. 



271. Achatinella porphyrea Newcomb. 



A. po)phyiea Newc. P. Zool. Soc. London, 1853, p. 136, pi. xxii, fig. 16. 



Shell rather solid, acuminately conical ; whorls 7, subcari- 

 nated above, plano-convex ; suture deeply impressed ; aperture 

 subovate, contracted below; lip thin; columella short, terminating 

 in twisted plait; epidermis thin and black; striae longitudinal and 

 strong; color beneath epidermis of a leaden hue, with numerous 

 transverse brown lines encircling the shell. Long. 15/20, lat. 

 8/20 poll. 



This species belongs to the same group with A . spirisona Fer., 

 A. cylindrica and A. intermedia Nob., but which are quite distinct 

 in specific charadlers. They are all terrestrial, not arboreal spe- 

 cies. — Newc. 



Hab. Near Mt. Kaala. 



272. Achatinella grossa Pfeiffer. 



,). K'oisa Pfr. P. Zool. Soc. London, 1S55, p. 204. 



A. testa imperforata, dextrorsa, conico-ovata, solida, subruditer striata, 

 castanea; spira ovato-conica, apice acuta, nigricante; sutura pallida crenu- 

 lata; anfr. 7, sutnmis planis, laevigatis, sequentibus sensim coiivexioribus, 

 ultimo 2-5 loiigitudinis siibaequante; apertura obliqua, sinuato-ovali, intus 

 albida; plica coluin. laniinseformi, subtriangulari, fere transversa; perist. 

 recto, acuto, inarginibus callo albido junctis, dextro intus sublabiato, colu- 

 mellari adnato. Long. 23, diam. 11 mill. 



Shell imperforate, dextral, conically ovate, solid, somewhat 

 roughly striated, chestnut; spire ovately conic, apex acute, black- 

 ish; suture pale, creiiulate; whorls 7, the upper flat, smooth, the 



