■294 



Records of the Indian Museum. 



[Vol. XXII, 



My own genus is only known from Upper Burma, Laos 



and Cambodia. I am now able to distinguish four species as 



follows : — 



I. Shell decorated with well-defined incised spiral lines : 



55 whorls ... ... ... ... T. tjicisa. 



II. Shell without incised spiral lines, with more than 

 6 whorls. 



A. Shell devoid of prominent linear ridges and not 



at all angulate ... ... ... T. fiilva. 



B. Body-whorl of shell bearing linear ridges or 



distinctl}' angulate. 

 i. Shell with more than one linear ridge : 7j whorls T. concolor. 

 a. Shell with the body-whurl angulate : 6^ whorls T. bhamoensis. 



The first of these species is the type-species and is only known 

 from the Chindwin watershed and in a subfossil condition. The 

 second was described by Reeve ' as Paludina julva from Cambo- 

 dia and also occurs in I,aos. I have examined the type-series of 

 three shells in the British Museum. T. concolor was originally 

 described by Nevill* as Paludina naticoides var. concolor. The 



Text-fig. i. — Photographs (nat. size) of 



(a) Temtiotaia concolor (Nevill). 



(b) Temtiotaia bhamoensis (Nevill). 



type-specimens have apparently been lost, but I was' perhaps 

 wrong in thinking that Nevill regarded them as identical with the 

 forma typica of Theobald's P. naticoides. All he inferred was that 

 the series in Calcutta was the type-series of his variety. In the 

 small series in the British Museum there are two specimens from 

 the Upper Salween, included under the name Vivipara shanensis 

 (Theobald), which agree exactly with Nevill 's brief description of 

 the var. concolor except that the colour has faded to a greenish 

 buff. The larger of them is here figured. There are 7^ whorls. 

 T. bhamoensis was also briefly described by Nevill/ as a variety 

 of V. dissimilis (Miiller). I have not the type-specimen before me, 

 but have asked Dr. Baini Prashad to add a note upon it. 



1 Reeve, Conch. Icon. XIV, pi. x, fig. 64 (1864). 



■2 Nevill, Hand List Moll. Ind. Mtis. II, p. 25 (18S5). Since this was written 

 Col. Godwin Austen has kindly shown me a series of specimens identified by 

 Theobold as Paludina naticoides. .Apparently he included T. concolor in that 

 species as well as nearly smooth specimens of the true Taia naticoides. 



3 .Annandale, Jiec. Ind. Mus. XIV, p. 163 (1918). 



* Nevill, torn, eit., p. 29. 



