150 G. Nevill- New or little-known [No. 3, 



Found tolerably abundant at Tamsui by Surgeon- Major R Hunger- 

 ford ; the first species described from Formosa belonging to the section 

 Oharax, the only other species known being Aly. (Dioryx) sivinhoei, 

 H. Adams. 



DlPLOMMATINA HUNGERFORDIANA, n. Sp. 



Dextral, imperforate, conically ovate, rather solid, of a golden brown 

 colour, sometimes white or nearly so ; spire conical, not attenuate, apex 

 obtuse, suture impressed ; whorls 6 tumidly, convexly swollen, the upper 

 ones lightly, regularly striate, the striation almost obsolete on the antepe- 

 nultimate whorl and altogether so on the last one ; aperture nearly circular, 

 margins joined with a beautifully arched callosity, conspicuously raised 

 and thus defined on its outer margin, the double peristome usually of a 

 bright orange colour is boldly and evenly rounded, the columellar margin 

 is scarcely oblique, only very slightly subangulate at base, with a tolerably 

 prominent fold or tooth. 



Long. 3, diam. If mil. 



Found by Surgeon-Major R. Hungerford at Kulung in Formosa. In 

 sculpture it somewhat resembles D. semisculpta, Blf. I know no Indian 

 species with the whorls so regular in shape and evenly rounded, the ante- 

 penultimate as usual being a little the broadest ; the columellar margin 

 is also more rounded than usual and less distinctly subangulate at its base. 

 J. A. S. B., 1870, pi. 1, fig. 3 A. (-D. sherfaiensis) gives a fair idea of 

 it ; the peristome is, however, very different, being boldly and evenly round- 

 ed, very broadly reflected, its duplication giving it a sulcate appearance as 

 iu J. A. S. B., 1875, pi. VI, fig. 4, (D. burti) ; viewed from the side this 

 duplication does not show at all, as for instance, loc. cit. 1870, fig. 3 B , 

 and the peristome then appears to be simple as loc. cit. 1875, fig. 6, 

 (D. tumida). J. A. S. B., 1875, pi. IV, fig. 5, I consider quite distinct 

 from D. slierfaiensis, and I suggest for it the name D. japvoensis ; it gives 

 a very good idea of the shape of the whorls of my D. hungerfordiana ; in 

 the latter, however, the last whorl at base is less prominently ventricose. 

 This is the first species of the genus known from Formosa ; from Japan 

 three species have been described by von Martens ; Gould described two 

 species of Paxillus from Hongkong and the Loo Choo Islands ; no species 

 is as yet known from China proper. 

 Cyclostoma (Tropidophoiia) caldwellianum, Nevill, PI. VI, Fig. 10. 



Hand-list I, 1878, p. 305, Pouce Mn. Mauritius (semifossil;, long. 31, diam. 30 

 mil. 



Deeply, though narrowly umbilicate, globosely conical, rather fragile 

 (at least in its subfossil state), colourless, spire conically produced, apex 

 acute, suture more or less subcanaliculate, characteristically " fimbriate" or 

 puckered ; whorls 5 to 6, convex, the last one rather more convex above 



