SCIURUS ALBICEPS. Ill 



tliis and an other local variety , so that it is an impos- 

 sibility to give a definite description of each. Therefore 

 I bring them under a single head and looke upon them 

 as forming a single species with more or less exactly cir- 

 cumscribed local- varieties. 



The specific title alhiceps is a very bad one as it only 

 is applicable to specimens from Sumatra and to a few 

 ones from Malacca , but hypoleucos is a bad one also , being 

 only applicable to Sumatra- and some Borneo-specimens, 

 meanwhile the name auriventer is more exact for those of 

 the Malayan peninsula and Java. As there are in the 

 nomenclature of systematic zoology yet a large number of 

 bad and insignificant specific titles and as the name al- 

 hiceps is not better or worse than other ones , I feel not 

 obliged to change it, having it moreover the priority of 

 date and this always ought to be respected. 



Sciurus finlaysonii Horsfield seems to be a young indi- 

 vidual of this species. The skull presents no very stri- 

 king differences if compared with that of Sciurus hicolor. 

 There is a single upper premolar. 



Hab. Siam , the Malayan peninsula , Sumatra , Borneo 

 and Java. 



Mounted specimens in the Leyden Museum: 

 1 and 2. Adult males, Malacca, Diard, 1828. — 3 

 and 4. Adult male and female, Malacca, Landauer, 

 1864. — 5. Adult male, without locality. — 6. Adult 

 specimen, Reinwardt. No^ 1 — 6 are representatives of the 

 auriventer--^ Qx'ieij ; N" 3 however has the underparts more 

 yellow, the upperparls yellowish white. — 7. Adult male, 

 Singapore, Diard, 1858. Lowerparts pure white, upper- 

 parts and tail brown, head of a darker tint. It repre- 

 sents the ajfinis-Yarietj. — 8,9 and 10. Adult male and 

 females, Sumatra, Padang, S. Muller, 1833. — 11. Adult 

 female, Padang, Reinwardt. — 12. Adult male, Padang, 

 Henrici. N°^ 8 — 12 are the specimens called hypoleucos 



Notes from ttie Leyden IMuseuin, "Vol. V. 



