54 collinge: non-opekculate land and freshwater molluscs. 



CLAUSILIIDAE. 



Clausilia, Drap. 

 Clausilia kapayanensis, de Moig. 

 Psmdrmenia IrijKct/anetisix, de Morg. : Bull. Soc. Zool. Fr., 1885, 



vol. X, p. 43, pi. ii, fig. 8. 

 Hah. — Belimbing, State of Ligeh. 

 One specimen. 



Clausilia penangensis, Stol. 

 ClauxiUa (Phaedum) jtcnan'/cnsis, Stol. : J. As. Soc. Bengal, 



1873, vol- >^liij P- 27, pi. ii, figs. 4-6 and 15-17. 

 Hab. — Belimbing, State of Ligeh. 

 I have to thank Mr. E. R. Sykes for very kindly examining these. A 

 large globose form, which at first sight seems very distinct, he thinks 

 is only a variety, as there are intermediate forms gradually leading up 

 to it. 



Clausilia penangensis, var. 

 Hab. — Bukit Besar, 2,000 ft.. State of Nawng Chik ; Patalung, 

 State of Raman. 



VERONICELLIDAE. 



Veponicella, Biainv. 

 Veronicella, sp. 

 Hab. — Hills near Biserat, State of Jalor. 



There are two specimens belonging to this genus, but owing to 

 injury the species are undeterminable. 



RATHOUISIIDAE. 

 The genera of slugs which have been grouped under this family are 

 Rathoutsia, Heude (15), Ato/ioi-, Simr. (27), Prisma, Simr. (27), and 

 the sub-genus Padatvjia, Babor (i). 



In the present collection there are examples of Afopos only (and 

 possibly Babor"s sub-genus), but as the anatomy of this genus has an 

 important bearing upon the family generally, and on other families of 

 molluscs, it seems desirable to very briefly state the history of the 

 various species and genera, and the views of other malacologists upon 

 their position, affinities, etc. 



Under the name of Va(jinula tourranni'iniis* Souleyet (29) in 

 1852 described a slug found by Gaudichand near Tourranne in 



It shou'd be pointed out that F^riissac's genus I'aginulus (iSzi), has really priority over 

 any of the above mentioned genera, for he distinctly states ihat in V. tauna\si, the type 

 of the jienus the pulmonary aperture is on the lower riglit side of the mantle about two- 

 fifths of the lene'h of the body from the anterior end, the female eenerative orifice on the 

 same side is Said to be about the middle. Blainville s account of the anatomy, however, 

 is partly contradictory to F^ru>sic's account, and his figures very unsatisfactory. 



