221 



species iueluded in 17G yeuera, while Whitehead records 1-51) sjjecies 

 ill 124 yeiiera from the Boriieaii mouutaiu. 



But the Malay Peninsula contains no peculiar genus, while Kiua 

 Balu possesses no less than seven — viz., 



ChlamydochEera 



Oreoctistes 

 Chlorocharis 



Orthuocichla 

 AUocotops 

 Audrophilus 

 Hsematortvx 



Several genera occur both in Tenasserim, Borneo and Sumatra, 

 but find no representative species in the Malay Peninsula — viz., 

 Merula | Staphidia 



Garrulax 

 nor ai*e— 



Cettia I Hyloterpe 



found on Kiiia Balu, met with here. 



On the other hand, Himalayaic genera, not met with in the Suuda 

 Islands, occur in the Peninsula — viz., 

 Seiilophus 



Nitidula 



Gampsorhyuchus 



Trochalupteron 



Pseudomiula 

 Siva 

 Cutia 

 Pyrrhula 



As do also representatives of the Sumatran genera 

 Chalcurus (Polyplectron) 

 Psilopogon 



Khinocichla 

 Melauocichia 



which are not met with either in Tenasserim or Borneo. 



Those few mammals that are known to be confined to the high 

 mountains support the view that the fauna of the central chain has 

 been very largely derived from the continental land masses to the ^ortli. 

 These species are : 



Name. Nearest ally. Locality. 



Sciurus castaneiveutris griseo- Sc. c. griseopcctus Assam 

 pectus 



Sciurus tenuis tahau Sc, tenuis Low countrv, 



Malay Penin- 

 sula 



Seiurus macclellandi novemii- Sc. inc. tyi»icus Tenasserim 



neat us 



Fuuambulus rufigenis beliieldi F. rufigenis typicus ,, 



Mus ciliatus Mus edwardsi 



Mus ferreocanus Mus berdmorei 



Mus bukit Mus jerdoni 



In conclusion, it may, I think, be taken as proved : 



(1) That the origin of the submontane species of the Peninsula 

 is Indo-Malayan and comparatively recent in time, the si^ecies have 

 spread N.-W, from the Sunda Islands rather than S.-E. from Burma. 



Yunnan 



Mergui 



Tenasserim 



