56 HELICID.5;. 



y. Three parietal folds. 



*. Shell elliptic, palatal folds short, second 

 scarcely curved. 

 t. Lip much reflected. 



§. Two upper palatal folds terminating 



near the peristome eolletti. 



§§. Palatal folds terminating further 



back carahinata. 



tt. Lip little reflected. 



§. Shell strongly and regularly ribbed. . gudei. 

 §§. Shell more faintly and irregularly 

 ribbed. 



1. Third palatal fold almost hori- 



zontal erronea. 



2. Folds very short, nearer aperture, 



third palatal fold very oblique,^ 



ascending v. erronella. 



**. Shell rounded, palatal folds longer, 



second much curved fi'y^f- 



67. Gorilla adamsi, nom. mut. 



Helix charpentieri, Pfeiffer, P. Z. S. 1853, p. 127 (non Helix char- 



j)entieri, Scholtz, Schlesien's Laud- und Wasser-Moll. 1843, p. i'8) ; 



Reeve, Conch. Icon, vii, 18o4, pi. 185, fig. 1285 ; Hanlev & 



Theobald, Conch. Ind. 1870, pi. 14, flg. 1 ; Brot, Journ. Conchyl. 



xii, 1864, p. 22, pi. 2, flg. 11. 

 Corilhi charpentieri, Frauenfeld, Verb. K.-K. zool.-bot. Ges. xix, 



18C9, p. 876 ; Gude, Science Gossip, n. s. iii, 1896, p. 88, 



fig. 1. 

 Helix {Corilhi) c/mrpentieri, Nevill, Hand List, i, 1878, p. 70. 

 Helix (Atopa) charpentieri, Trvon, Man. Conch, ser. 2, iii, 1887, 



p. 156, pi. 33, figs. 9, 10. 



Original description : — " Testa umbilicata, discoidea, solidula, 

 oblique costato-striata, parum nitida, virenti-cornea ; spira regu- 

 lari, plana ; anfractibus 5^, lente accrescentibiis, raodice convexis, 



Fig. \2.— Conlla adaimi. 



ultimo rotundato, antice profunde descendente ; umbilico lato, 

 conico, subirregulari ; apertura fere borizoiitali, rotundato-lunari, 

 intus albida, prorsus edentiila ; peristomate albo, undique late 

 expanse et reflexo, marginibus convergentibus, infero ad inser- 

 tionem attenuato." (Pfeiffer.) 



Diam. maj. 27^, mia. 22, alt. 9 mill. 



Hah. Ceylon (Laijard, Collett); Nanu Oya jungle (Preston). 



Among all the known species of Corilla the pi'esent one is 



