106 ZCXSTTLLLE. 



and there is no trace of labiation inside the aperture. The anatomy 

 differs considerably. There is no dart-sac ; the kale-sac of the 

 penis is much longer and the spermatheca short and club-shaped, 

 with the terminal portion ovate. The teeth on the radula are 

 arranged thus : 38 . 2 . 12 . 1 . 12 . 2 . 38 (52 . 1 . 52) and rather 

 peculiar in shape. 



*154. Macrochlamys salmonea, Ancey (Nanina-Medyla). Le Nat. ii, 

 p. 119(1882). 



Shell depressedly convex, shining, thin, horny-ochraceous ; 

 spire broadly conical, obtuse ; whorls 5, almost not convex, 

 smoorh, separated by a shallow suture, rapidly increasing, the 

 last very large, much rounded ; umbilicus small ; aperture semi- 

 lunar, scarcely oblique, simple, not thickened nor sinuate, briefly 

 reflected at the columellar margin and deflected at the umbilicus, 

 the margins united by a very thin callus. 



Major diam. 12A, min. 1Q<J, height 8 mm. ; aperture 7mm. 

 broad (Ancey in Latin). 



Hab. Cachar. 



" Easily distinguished from H. Ulineatus, Godwin-Austen, of 

 Dafla Hills, by its larger size, more solid shell, its yellow-ochre 

 colour, and its less globose form." 



I am unacquainted with this species. 



155. Macrochlamys godwini, Tryon, Man. Conch, ser. 2, Pulm. ii, 



p. 101 (1886). 



Macrochlamys koliaensis, Godwin-Austen, Mol. Ind. i, October 1883, 

 p. 119, pi. 26, figs. 5-5 a (shell), pi. 28, fig. 3 (radula) ; ii, 1898, 

 p. 50 : nee M. koliaensis, Godwin- Austen, op. cit. i, January 1883, 

 p. 86, pi. 17,%. 6 (shell). 



Shell perforate, depressed, thin, transparent, polished, smooth 

 (no longitudinal sculpture), brownish horny ; spire very low, 

 suture impressed ; whorls 5 (immature), convex, the last broader, 

 rounded at periphery, moderately convex beneath ; aperture 

 slightly oblique, broadly lunate ; peristome thin, columellar 

 margin much curved, vertical above, expanded throughout, more 

 broadly reflected at the perforation. 



Major diam. 12, min. 10 J, height 5| mm. 



Hab. Koliaghur on Brahmaputra Eiver, Nowgong District, 

 Assam (Godwin- Austen}. 



The animal is " dusky green ; side of foot grey, spotted with 

 sienna ; extremity of foot with gland, having an overhanging lobe 

 long and pointed." Teeth of radula in 93 rows, thus arranged : 

 42 . 2 . 10 . 1 . 10 . 2 . 42 (54 . 1 . 54). 



156. Macrochlamys terminus, Godwin-Austen, Mol. Ind. ii, 1899, 

 pp. 134, 136, pi. 94, figs. 3, 3 a (spermatophore). 



Shell perforate, depressed, thin, smooth, polished; spire very 

 low, convexly conoidal, apex obtuse, suture scarcely impressed, 

 shallow ; whorls 6, flatly convex above, the last broader, rounded 



