GASTROCOPTA, INDIA, ETC. 139 



margins thin, joined by a wide parietal callous. Length 

 diam. 1% mm. (Benson). 



Burma: region of Ava (W. T. Blanford) ; also Mandalay 

 (Blanford). 



Pupa avanica BENS., Ann. Mag. N. H. (3), xii, 1863, p. 

 428. BLANFORD, Journ. A. S. Beng., vol. 34, 1865, p. 95. 

 HANLEY and THEOBALD, Conch. Indica, 1876, pi. 160, f. 7. 

 SOWERBY, Conch. Icon., xx, Pupa, pi. 7, f. 60. Bifidaria ava- 

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



"This shell is related to the Western Himalayan P. hutto- 

 niana Bens., but differs in surface, in having an additional 

 upper palatal tooth, and a more distinctly double parietal 

 plica" (Bens.). Fig. 9 is copied from Conchologia Indica. 



"The species is characterized by the very convex whorls 

 and the deep suture, resembling mimula in that respect, but 

 it is more conoid and the last whorl becomes more contracted, 

 while in mimula the aperture is more rotundate. A specimen 

 in the Hungerford collection in the British Museum shows a 

 slight additional parietal denticle nearer the columella. A 

 shell in the Beddome collection has only two palatal plicag" 

 (Gude). 



An Ava specimen from the Indian Museum is drawn in pi. 

 26, fig. 11. The shape is a little more conic and the suture 

 deeper than in G. huttoniana. The inner end of the angular 

 and the outer end of the parietal lamella are juxtaposed later- 

 ally and concrescent, the parietal being much higher than in 

 specimens of huttoniana seen. There is a slight trace of an 

 infraparietal. The columellar lamella enters horizontally. 

 Basal fold is subcolumellar in position. There are but two 

 stout palatal plicae. The peristome is continuous. Length 2.2, 

 diam. above aperture 1.15 mm. ; 5V4 whorls. 



85. GASTROCOPTA PALMIRA (Stoliczka). PL 25, figs. 4, 9. 



Shell ovate-cylindric, rimate, dull whitish, corneous, apex 

 rather obtuse. Whorls 5, convex, gradually increasing, joined 

 by a simple suture, rather smooth, nearly polished, marked 

 with a few transverse, oblique lines of growth. Aperture 

 nearly vertical, subquadrangular, 5-toothed within, whitish ; 



