132 SCIURUS PREVOSTII. 



exact; I only have to add a conspecies from Biliton which 

 differs from the Banka-form by its redder shoulders ; in 

 this characteristic it agrees with the Sumatraa-conspecies. 

 There are two upper premolars, the first one is very 

 developed. 



Hab. China (Gray), the Malayan Peninsula, Sumatra, 

 Bauka, Biliton, Borneo and Celebes. 



Mounted specimens in the Leyden Museum: 

 1 , 2 and 3. Adult males and female , Malacca , Diard. — 

 4, 5 and 6. Adult specimens, Malacca , Landauer , 1864. — 

 7 , 8 and 9. Adult specimens , Sumatra , Teysmann , 1865. — 

 10 and 11. Adult specimens, Sumatra, Lidth de Jeude, 

 1866. — 12. Adult specimen, Banka, v. d, Bossche, 

 1861. — 13 and 14. Adult male and female, Biliton, 

 Teysmann, 1877. — 15, 16 and 17. Adult male and 

 females, Borneo, Pontianak, Diard. — 18, 19, 20, 21. 

 Males and females, Borneo, Kapoeas-river , Schwaner. — 

 22. Male, Borneo, Doeson-river , Schwaner. — 23. Adult 

 male , Borneo , Lidth de Jeude, 1866. — 24. Adult specimen , 

 South-Eastern Borneo, C. Bock, 1879. — 25 Adult male, 

 Borneo, Frank, 1880. — 26 and 27. Adult specimens, 

 mainland opposite Labuan, North-Borneo, Frank, 1880. — 

 28. Adult male, Celebes, Kema, Forsten. — 29. Adult 

 male, Celebes, Menado, Forsten. — W 12 is the type 

 of Sciurus prevostii hangkanus Schlegel; Nos 15, 16 and 17 

 are the type-specimens of Sciurus ra£lesii, var. borneoensis 

 Muller and Schlegel; N^s 18 — 22 are the type-specimens 

 of Sciu7'us atricapillus Schlegel ; N*^ 28 is the type of Sciurus 

 erythrogenys Schlegel {Schlegelii Gray) ; N° 29 is the type ot 

 Sciurus erythromelas Temminck. 



30. Skull of an adult specimen, Sumatra. — 31. Skull 

 of N" 15. — 32. Skull of N" 16. — 33. Skull of N" 17. — 

 34. Skull of N» 24. — 35, 36, 37 and 38. Skulls of 

 adult specimens, Borneo. 



Notes from the Leyden ]Museuixi, "Vol. "V. 



