PALUDOMUS. 61 



121. Paludomus (Tanalia) cumingiana (Dolirn\ 



Paludomus (Tanalia} cumingiana (Dohrn), P. Z. S. 1857. p. 124: 

 H. & T., C. I. pi. 126, figs, 5, 6. 



Original description : Testa globosa, solida, olivaceo-fusca, 

 obsolete spiraliter sulcata ; spira valde depressa, exserta ; anfractus 

 ultirnus ceteros superans, ad suturam in formam canalis impressus ; 

 apertura magna, obliqna, flavescens, intus albida, lineis Digris 

 undatis longitudinaliter distincta. 



Alt. 33, diam. 34 mm. 



Aperture : alt. 30, diam. 24 mm. 



Hob. Ceylon. 



Allied to P. (T.) gardneri, Eeeve, but distinguished by the 

 " deep channel-like impression on the upper part of the whorl, and 

 in the large size of the mouth." 



122. Paludomus (Tanalia) thwaitesi (Layard). 



Paludomus (Tanalia) Ihwaitesi (Layard), P. Z. S. 1854, pp. 93-94 

 (as Philopotamis) ; H. & T., C. 1. pi. 125, figs. 8,9 j Nevill, Hand 

 List, pt. 2, p. 304 (as P. (T.} nentoides var. thwaitesi?). 



Original description : Shell oblong-ovate ; axis 13 lines, diam. 

 9 lines. Spire exserted, short. Whorls almost carinated round 

 the upper part, spirally corded with unequal sized, close, but 

 irregularly set ridges, granulated or minutely striated. Colour 

 yellowish olive, painted more or less with wavy, dark brown 

 longitudinal lines. Aperture pinkish white, occasionally having 

 the outer lip dotted with dark pink-brown marks. 



Alt. 30-5, diam. 23'75 mm. (Conch. Ind. pi. 125, fig. 9). 



Hob. Weyweldenia, Ceylon. 



123. Paludomus (Tanalia) tennantii (Eeeve). 



Paludomus (Tanalia) tennantii (Reeve), Con. Icon., Palud. sp. 12 ; 

 H. & T., C. 1. pi. 122, tig. 5 (as P. te.nnentii) ; Nevill, torn. cit. 

 (as P. (T.) neritoidesvai*. tennenti). 



Original description : Shell obovate, rather thick, spire scarcely 

 exserted ; whorls rounded, smooth, or very obscurely ridged ; 

 aperture rather largely effused ; olive, indistinctly longitudinally 

 waved, interior white, columella and edge of the aperture stained 

 with purple-brown. ,__ ^^ , 



Alt. 31, diam. 29 mm. (taken from pi. 3, fig. c, in Con. Icon.). 



Hab. In a rocky stream flowing from Adam's Peak, Ceylon. 



" . . . . distinguished in early growth by an elaborate pattern of 

 waved painting, which is very conspicuous in the interior of the 

 shell. At a more advanced period, this striking display of pattern 

 is entirely obscured by a superincumbent deposit of colourless 

 matter." 



