142 LAND AND FRESHWATER 
Helix nicobarica, Beck, Index Moll. Christ. Mus. Fred., Ap. p. 5 
(1837), as a subgenus of Nanina (with no description) ; Pfr. Mon. Hel. 
vol. i. p. 40; Reeve, Conch. Icon. fig. 1157 ; Han. & Theob. Conch. 
Ind. p. 24, pl. lii. fig. 1 (back view only). 
Ariophanta nicobarica, Theobald, Cat. Supp. p. 23. 
Nanina (Ariophanta) kadapaensis, Nevill, Hand-list, p. 19 (re- 
named). 
Ariophanta kadapaensis, Godw.-Aust. J. A. 8. B. 1880, p. 152. 
“ N. nicobarica, Chem., is a misnomer, as it is not found at the 
Nicobars.” The specimens in the Ind. Mus. Calcutta are from 
Golapilli and Jummulmulgoo, Kadapa dist., South India. Collected 
by Mr. W. King. 
Description in Pfeiffer :—‘‘ Testa perforata, sinistrorsa, solida, 
globulosa, oblique striata, castaneo-rufa, ad peripheriam, suturdm et 
basin albo-zonata ; spira brevis, obtusa ; anfr. 54, convexiusculr, ulti- 
mus antice descendens, basi inflatus ; apertura rotundato-lunaris, 
intus concolor ; perist. simplex, obtusum, album, margine columellari 
reflewiusculo, perforationem fere tegente. 
“Diam. major 37, minor 30, alt. 27 mill. (Mus. Gray). 
* Hab. in insulis Nicobarisis.” 
Genus DuRGELLA. 
Durgella, W. T. Blanford, A. M. N. Hist. ser. 3, 1863, vol. xi. 
p. 81. 
Macrochlamys (Durgella) honesta, Stoliczka, J. A. S. B. 1871, 
p. 248. 
Durgella, Godwin-Austen, Proc. Linn. Soc., Zool. vol. xv. 1881, 
p. 291. 
The genus was founded by Mr. W. T. Blanford in February 1863 
in his paper (J. ¢.) ‘On Indian Species of Land-Shells belonging to 
the Genera Helix, Linn., and Nanina, Gray,” which was really the 
first attempt to classify the Indian land-shells by the form of the 
animal; and in the section Nanina the form of the mucous pore at 
the extremity of the foot was principally relied on, together with 
the character of the shell. It placed several species in their correct 
natural divisions which were before unknown; and the localities 
are authentic, which renders the paper a valuable one as regards 
their distribution. In Durgella he included three species :— 
The type, D. levicula, Bs. Tenasserim (Theobald) ; Prome in Pegu. 
D. mucosa, W. & H. Blf. Nilgiri Hills. 
D. seposita, Bens. Darjiling. 
I am very doubtful if mucosa can be placed in this genus: seposita 
may be, perhaps; but if, as Mr. G. Nevill thinks, seposita is the 
same as my bilineata from the Dafla Hills, then it must be removed ; 
for the latter is a true Macrochlamys. The species honesta, as placed 
by Stoliczka in this genus, cannot be retained; he had not then ex- 
