134 GASTROCOPTA, CEYLON. 



VI. SPECIES OP CEYLON, INDIA AND THE MALAY PENINSULA. 



The Indian Pupillidae have been inadequately described 

 and figured, and the classification of part of them remains 

 uncertain. The original descriptions have been reprinted by 

 Pfeiffer, and again, with useful notes on some forms, by Gude, 

 in "The Fauna of British India." For illustrations we are 

 dependent upon the poor figures in ' ' Conchologia Indica," 

 except where specimens have been supplied from the Indian 

 Museum and other sources. 



G. mimula and probably G. serrula belong to the typical 

 subgenus of Gastrocopta, and are somewhat related to the 

 Abyssinian G. klunzingeri. The slight outward bend of the 

 inner end of the parietal lamella is a feature unusual in this 

 subgenus. 



G. bathyodon, huttoniana and avanica belong to the sub- 

 genus Sinalbinula, being closely allied to Chinese species. 

 The species barrakporensis and thibetica may turn out to be 

 Nesopupse or in that vicinity. I have not seen serrula, barrak- 

 porensis, thibetica or palmira. 



78. GASTROCOPTA MIMULA (Benson). PI. 23, figs. 16, 17. 



Shell rimate, ovate-oblong, subcylindrical, obliquely deli- 

 cately plicatulate, pale corneous, apex obtuse, suture rather 

 deep. Whorls 5, convex, the last slightly ascending. Aper- 

 ture ovate, vertical, 5-plicate. Peristome thin, expanded, the 

 margins joined by a thin, expanded callous. One somewhat 

 larger, entering parietal fold, one columellar, one deeply 

 placed basal, and two deep palatal. Length 2, diam. 1 mm. 

 (Bens.). 



Ceylon : Cape Pedro, among vines (Layard) ; Balapiti (G. 

 Nevill). 



Pupa mimula BENS., Ann. Mag. N. H. (2), xiii, 1853, p. 95. 

 HANLEY and THEOBALD, Conch. Indica, 1876, p. 65, pi. 160, 

 f. 4. PFR., Monographia, iv, 676. SOWERBY, Conch. Icon., 

 xx, Pupa, pi. 7, f. 61. Pupa (Vertigo) mimula Bens., G. 

 NEVILL, Hand List Moll. Ind. Mus., i, p. 198. Bifidaria 

 mimula Bens., GUDE, Fauna Brit. Ind. Moll., ii, p. 292. 



A rather narrow species, with delicate, unequal, strong 



