BY W. J. RAINBOW. 355 



consequently determination is difficult, and at the best unsatis- 

 factory. 



Genus Cocorchestes, Thor. 



65. Cocorchestes rufipes ^, Thor. 

 Loc. — Boirave, at 1,500ft., July, 1896. 



Order SCORPIONID^. 



Family PANDINOID^.. 



Subfamily PANDININI. 



Genus H o r m u r u s, Thor. 



66. Hormurus caudicula, L. Koch. 



Loc. — Boirave, at 1,500ft., July, 1896 ; Neneba (immature 

 specimen), November, 1896. 



Order PEDIPALPI. 



Suborder AMBLYPYGI. 



Family PRYNOID^. 



Genus P h r y n u s, Latr. 



67. Phyrnus grayi, P. Gerv. 



Loc. — Boirave, at 1,500ft., July, 1896. 



Obs. — Two specimens of this interesting species were obtained, 

 and these, when compared with Walckenaer's description, appear 

 so close that there can be little doubt as to their identity. 



The line of demarcation drawn by Wallace in his 'Geographical 

 Distribution of Animals," based chiefly on vertebrates is hardly 

 supported by the testimony of the invertebrate fauna. The dis- 

 tinguished author, as every scientific student knows, held that 

 the fauna of the Philippine Islands was distinct from that of 

 Papua. The former he included in the Indo-Malayan region, and 

 the latter in the Austro-Malayan. In dealing with "The Land 

 Molluscan Fauna of British New Guinea," Hedley says :^ 

 "Wallace's line, so conspicuous a severance among the vertebrates, 

 appears to be quite blotted out, when the distribution of animals 

 is regarded from a molluscan standpoint. No sharp break occurs 



