from tlte Philippine Islands, 353 



may be distinguished thus : — It is larger and has a more 

 glossy appearance, caused by the absence of the fine spiral 

 striaj which mark the surface of that species. The flame-like 

 painting which ornaments the upper surface never extends 

 beyond the periphery, the base being of a uniform light or 

 dark horny tint. 



In the three specimens of L. ciliatum in the Museum 

 collection tlie base and especially the umbilicus exliibit vivid 

 flammulations. Also two out of these three specimens 

 have a strong carina bordering the umbilicus, a feature 

 entirely wanting iu all the examples of the present species. 

 In the latter the peripherial keel revolves up the spire and is 

 visible just above the suture, and a second thread-like carina 

 occurs upon the middle of the penultimate and two preceding- 

 whorls, but is almost obsolete upon the last. In L. ciliatum 

 these keels or lir^e are much less conspicuous. 



The ground-colour varies from reddish to whitish horn- 

 colour, and the amount of flame-like painting upon the upper 

 surface is more or less extensive, in some cases forming 

 merely a series of blotches at the suture. 



The typical examples of L. ciliatum were obtained in the 

 island of Luzon by Mr. Cuming ; but the occurrence of the 

 species in the Philippine Islands has not since been con- 

 firmed. 



13. Cyclotus euzonus, Dohrn. (PL XVIII. figs. 17-19.) 



Hah. Palawan [Dohrn and Everett). 



A single specimen of this species was obtained by Mi*. Eve- 

 rett, differing from the type in being entirely of a chestnut- 

 colour with the exception of a yellow narrowish zone at the 

 periphery. In form this species exactly resembles G. Boxalli 

 of Godwin-Austen, from North Borneo, but may be distin- 

 guished by difference of colour and its smooth thin epidermis, 

 which, in the Bornean shel], is thick, opaque, and striated. 



EXPLANATION OF PLATE XVIII. 



Figs, 1-3. Macrochlamys pseustes. 

 Figs. 4— G. Lamprocystis chlororhaphe. 

 Figs. 7-9. Trochonanina paraguensis. 

 Figs. 10-13. Amphidromus quadrasi. 

 Figs. 14-16. Lagochilus similis. 

 Figs. 17-19. Cyclotus euzonus. 

 Figs. 20,21. Leptopoma paUiwanensis. 



