894 MOLLUSCA. 



transverse sculpture, by the peculiar green of the epidermis, which has less of a 

 yellow tinge, and by the umbilicus being more open than in any other specimens 

 I have seen of this protean shell ; this form is near P. oxytropis, Bens.,^ from Mani- 

 piir, though the latter I consider a good and distinct species. M. Morelet^ has re- 

 cently suggested that probably both P. poly gramma and P. lineolata are merely 

 varieties of P. bengalensis ; he states that both forms are found in Cochin China, 

 and he identifies the two former for certain as merely varieties of P. sumatrensis.^ 



Genus Paltjdomus, Swainson. 

 Paludomus andeesoniana, Nevill. 



Large and globose ; spire produced and pointed ; of a very striking greenish- 

 yellow colour, with four intense black bands on the last whorl, the one at the suture 

 and the two near the base about the width of the broadest band on P. ornata ; 

 the second band from the suture twice this width ; this latter, in all but very old 

 specimens, is very distinctly visible within the aperture; whorls seven, the first 

 two or three generally decollated, transversely superficially ridged, ridges more or 

 less obsolete towards the centre of the upper whorls, one of them below the suture 

 more prominent than the rest; columella pure white; the operculum constantly 

 differs on its inner side from those of the other Burmese species by the remarkably 

 raised and very rugose nucleolar portion and by the distinct, though minute, 

 granular margin. Dr. Anderson obtained several hundred specimens in all stages 

 of growth at Mandalay, Ava, Bham6, Kabyuet, and Myadoung. One of the best 

 distinguishing marks from its var. peguensis is the great width within the aperture 

 of the second brown band ; the band nearest the base, on the other hand, is com- 

 paratively smaller; in P. peguensis (even in young specimens) the two upper 

 bands are altogether wanting, the third very narrow, the last broad and diffused 

 over the basal portion of the columella. This is probably the Faludomus, sp., of 

 Theobald^ from the Shan States. 



Long. max. 29, diam. max. 22 mm. 



var. PEGUENSIS (sp. n. ?) 



Paludomtis regulata, Bens., var., Con. Indica, pi. 108, fig. 6. 

 Paludomus andersoniana, \diY. peguensis, Nevill, ^. c, p. 35. 



Differs from the preceding by the slightly more rugose sculpture, by its more 

 decollated apex, by the less cylindrical whorls and less produced and pointed spire 

 (more apparent in young specimens), by the columella being apparently invariably 



^ Con. Indica, pi. Ixxvi, fig. 5. 



2 ger. Conch, vi, p. 306. 



3 Dkr., Mai. BL, 1852, 



* Journ. As. Soc, Bengal, 1865, p. 264. 



