AUSTENIA. 195 



*292. Austenia venusta, Theobald (Vitrina?), J. A. 8. B. 1870, 2, 

 p. 400; Pfr. (Vitrina) Man. Hel. vii, 1876, p. 512; H. $ T. 

 (Vitrina) 'C. I. 1876, pi. 152, fig. 5 ; Godwin-Austen, Mol Ind. 

 i, 1888, p. 237, pi. 59, fig. 5 (shell). 



" Shell ovately ear-shaped, scarcely convex above, diaphanous, 

 very thin, polished, subrugosely striated, bright yellowish brown ; 

 whorls 1|, rapidly increasing; aperture very broad. 



" Major diam. '-30, min. 17, height -10 inch (7 J X 4 x 2| mm.). 



" Hab. Near Chuegaley Tsekan, between Prome and Tongoop." 

 (Theob. in Latin.) 



The figure shows that this is very similar to A. gigas, though 

 only about a third the size, and it may be the young, as A. gigas 

 is said to be found in the Arakan Range. The shell from 

 Ponsee in Yunnan, referred to this species by Nevill (J. A. S. B. 

 1877, 2, p. 24), is shown by Godwin-Austen to be different. 



*293. Austenia magnifica, Godwin-Austen fy Nevill (Helicarion), 

 J. A. S. B. 1877, 2, p. 24; Nevill, Helicarion (Austenia), Hand-L 

 i, 1878, p. 16 ; Godwin-Austen, P. Z. S. 1880, p. 294, pi. 24, 

 figs. 1, 2 (animal) ; Nevill, Helicarion (Austenia), J. A. S. B. 

 1881, 2, p. 129, pi. 5, fig. 23 (shell) ; Godwin-Austen (Girasia), 

 Mol. Ind. i, 1888, p. 225, pi. 56, figs. 1, 2, 3 (animal), 4, 5 (shell). 

 Helicarion (Austenia) fese, Canefri, Ann. Mm. Civ. Gen. xxvii, 

 1889, p. 313, pi. 9, figs. 1-7. 



Shell very similar to that of A. gigas, but much larger, of a 

 brown, not a green colour, with the body- whorl much more flatly 

 expanded, and the spire less convoluted and more depressed; also, 

 looked at from underneath, very much less of the reflected body- 

 whorl is visible. 



Major diam. 46, axis 11J, aperture 401 by 291 mm. 



Hab. Teng-Yue-Chow or Momein in Yunnan, at 5500 feet 

 (Anderson) ; near Bhamo (Fea). 



The lobes of the mantle are united around the shell, which is 

 completely covered when the animal is alive, and only a small 

 portion exposed when the mantle is contracted in spirit. The line 

 uniting the shell-lobes is distinctly seen. The mantle also covers 

 much of the upper surface of the foot. [In this respect the 

 animal is like that of Girasia, and is the reason why I placed it in 

 that genus, the shell being different.] Mucous pore very long ; 

 spermatheca, as figured by Tappone Canefri, is very large ; other 

 generative organs as in Girasia generally. 



In the radula the teeth of the middle row are as usual ; the 

 outer laterals bicuspid, long, curved, and pointed, the outer cusp 

 much below the apex. 



294. Austenia nagaensis, Godwin-Amten (Helicarion), J. A. S. B. 

 xliv, 2, p. 5, pi. 2, figs. 3-3 c (shell and parts of animal) ; id. 

 (Girasia) P. Z. S. 1880, p. 294; id. (Girasia) Mol. Ind. i, p. 224, 

 pi. 61, figs. 3-3 c (shell and parts of animal). 

 [Fufefig. 64 C, p. 184.] 



Shell very thin, membranaceous, ovate, apex forming a coil, not 



o 2 



