880 MOLLTJSCA. 



The types of this species from Sylhet are in the Indian Museum. It is a form 

 with an unusually open umbilicus, a single spiral brown band, and a rather flat spire. 

 It occurs also in the Khasi Hills. A closely allied form is abundant in Arakan and 

 Bassein ; this only differs by the umbilicus being a trifle less open. It is well 

 represented in the Con. Indica, pi. xiy, &g. 10. Close to both the preceding are six 

 specimens found by Dr. Anderson at Bhamo ; umbilicus like that of the type form, 

 suture a shade more excavated, slightly smaller in size. Var. fasciata, Godwin- 

 Austen,^ is abundant at Sibsagar, in Assam ; it only differs by its coloration. 



Type of S. delibrata, from Sylhet: axis 7^, diam. 21 (apert. alt. 9, diam. 

 11 mm.) 



Specimen from Bhamo : axis 6|, diam. 19 mm. 



Var. khasiensis, Nevill,^ from Khasi Hills: axis 8J, diam. 19 J (apert. alt. 9, 

 diam. lOJ mm.) 



Var. fasciata, Godwin- Austen, from Sibsagar : axis 9, diam. 23 J mm. 



Sub- Genus Ganesella, Blanf. 

 Helix (Ganesella) capitium, Bens. 



Helix capitium, Bens., Ann. and Mag. Nat. Hist., 1848, ser. 2, vol. ii, p. 160. 

 Helix hariola, Bens., Ann. and Mag. Nat. Hist., 1856, ser. 2, vol. xviii, p. 251. 

 Helix (Ganesella) capitium, Nevill, I. c, p. 21. 



There is no specimen in the Indian Museum from Bengal of either of the shells 

 called JS. capitium or H. hariola, but I am informed by Mr. W. T. Blanford that 

 he has in his collection specimens of typical S. capitium from the Ganges Valley 

 and from the NuUaymuUay HiUs in Southern India, and that he is convinced that 

 the form in Upper Burma, first found by himself in 1861, cannot be distinguished. 

 Morelet, Ser. Conch, iv, p. 254, 1875, records a most interesting locality for H. 

 capitium, viz., Bangkok, in Siam. On the other hand, the Indian Museum possesses 

 both forms from Burma ; from Prome the form figured in the Con. Indica, pi. xiv, 

 fig. 6, as B:. hariola, and from Ava that figured on the same plate, ^g. 5, as H. 

 capitium ; the latter Dr. Anderson also found at Kalawat, Upper Burma ; the two 

 forms seem to me perfectly identical, except that var. hariola is keeled at the 

 periphery. 



Sub-Genus Dorcasia, Gray. 

 Helix (Dohcasia) similaris, Eer. 



Helix similaris, Fer., Prodr., 1821, 262, Hist. Moll., pi. 25, B., figs. 1, 4. 

 Helix (BorcasiaJ similaris, Nevill, I. c, p. 22. 



Pound abundantly at Prome, Pagan, Bhamo, and Sanda, with and without the 

 brown band at the periphery; specimens agree exactly with others in the Indian 



^ Jouvn. As. Soc, Bengal, 1875, pi. i, fig. 1. 

 2 Jouru. As. Soc, Bengal, vol. Ivi, 1877, p. 21. 



