On Two new Species oj Slujs. 191 



XXX. — On Two new Species of SIwjs of the Genus Micro- 

 parmavlon from Borneo. By Walter E. CollingE, 

 F.Z.8., Assistant Lecturer and Demonstrator in Zoology 

 and Comparative Anatomy, Mason University College, 

 Birmingham. 



[Plate IX.] 



I HAVE rece7itly received, through the kindness of Mr. Hugh 

 Fulton, specimens of three slugs collected at Lombok, Borneo, 

 by Mr. A. H. Everett, making the third series I have had 

 the privilege of examining from the Malay Archipelago^. 



Quite recently I have described two new species of Par- 

 marion from Lombok f, one of which — P . intermedium — 

 seems to form a connecting link between the genus Parmarion 

 and Simroth's genus Microparmarion. The two species here 

 described are probably referable to this latter genus. 



There seems little doubt but that most of the species 

 described as Parmarion, Microparmarion, and Girasia will 

 have to be included in the genus Girasia (emend.), in which 

 case Microparmarion, Simr., would form a subgenus or 

 section. Before any such revision can be attempted, the 

 various .species of Girasia described by God win- Austen will 

 require more fully diagnosing, especially the anatomy of the 

 generative organs. 



Having further material from India &c. awaiting examina- 

 tion, I hope later to be able to give a detailed account of the 

 anatomy of these and allied genera. 



I take this opportunity of again appealing to those natu- 

 ralists who are in a position to collect material to lend their 

 kind assistance. 



Microparmarion Fultoni^ sp. n. 

 (PI. IX. tigs. 1-5.) 



Shell oval in outline, convex dorsally, thick, with membra- 

 naceous borders, which are covered by the mantle-lobes, apex 

 obscure ; colour brownish amber dorsally, somewhat whitish 

 on the ventral side. Lines of growth clearly marked. Major 

 diam. 16 millim. ; minor diam. 11 millim. 



Animal almost black, excepting beneath the mantle and at 

 the sides of the body. Mantle-lobes black, anterior lobe 

 larger on the right side than the left, possibly due to con- 



* Proc. Zool. Soc. 1895, pp. 241-250, pk. xi.-xiv. ; 1897, p. 778. 

 t Ibid. 1897, pp. 778-781, pi. xliv. 



