ACHATINA.— Plate XXI. 
Species 95. (Mus. Cuming.) 
Achatina isabellina. Achat, testa fusiformi-oblongd , 
anfractibus sex, contexts, sub lente minutissime decus- 
satim striatis, ad suturas marginatis, columella ob- 
lique, sublate truncate, apertura ovatd ; pellucido- 
comea , sordide albicante. 
The soiled Achatina. Shell fusiformly oblong, whorls 
six in number, convex, very minutely decussately 
striated beneath the lens, margined at the sutures, 
columella oblique, rather broadly truncated, aperture 
ovate ; transparent horny, dull whitish. 
Pfeiffer, Pro. Zool. Soc. 1846, p. 31. 
Hab. Mexico. 
A shell of rather firm growth, though of transparent 
substance. 
Species 102. (Mus. Benson.) 
Achatina Pebrotteti. Achat, testa pgramidali-conica, 
anfractibus octo, rotundatis, Icevibus, columella subpro- 
funde arcuatd, aperture pared ; fusco-corned. 
Perrottet’s Achatina. Shell pyramidally conical, 
whorls eight in number, rounded, smooth, columella 
rather deeply arched, aperture small ; brownish 
horny. 
Pfeiffer, Kevue Zool. Cuv., 1842, p. 305. 
Hab. Nilgherries, Hindoostan ; Jerdon. 
Very closely allied to A. crassilabris, from which it 
mainly differs in being of a rather more elongated form, 
and not impressly crenulated. 
Species 113. (Mus. Benson.) 
Achatina Oreas. Achat, testa oblongo-conicd, anfrac- 
tibus septem, contexts, ad suturas subtiliter marginatis, 
longitudmaliter obscure mpresso-striatis, columella 
arcuatd, apertura part a ; fusco-corned. 
The mountain-nymph Achatina. Shell oblong-conical, 
whorls seven in number, convex, finely margined at 
the sutures, longitudinally obscurely impressly stria- 
ted, columella arched, aperture small ; brown horny. 
Benson, MS. 
Hab. Nilgherries, Hindoostan; Jerdon. 
Another interesting species of the Nilgherry type, ap- 
proaching to the form of A. Jerdoni. 
