KUNGL. SV. VKT. AKADEMIENS HANDLINGAR. BAND 57. N:0 2- 



33 



obtained in July the lower surface is cinnamon rufous. The median grizzled line is, how- 

 ever, fairly well-marked in all my specimens. 



This species seems entirely to be confined to the mountain forests and was by no 

 means common in the parts of the country visited by the Expedition. It has, however, 

 been recorded a few times from Northern Siarn before viz. from the Doi Sutepnear Chieng 

 Mai (Bonhote Proc. Zool. Soc. 1902 vol. I p. 39). 



Skull measurements 



Greatest length ' 51,5 



Condylus to gnathion 47,1 



Basicranial length 44,1 



Zygomatic width 29,5 



Width of brain case 23,3 



Least interorbital width 17,5 



Breadth between meatus auditiva . 21,3 



Length of nasals mesially 15,0 



Breadth of nasals anteriorly .... 6,8 



Breadth of nasals posteriorly .... 3, G 



Diastema 10,5 



Length of palate from henselion . . 20,3 



Maxillarv toothrow 10.2 



53.2 mm. 



52,3 mm. 



52,5 mm. 



— 



— 



46,9 » 



48,5 » 



— 



— 



43.9 



44,2 





31,2 » 



30,5 » 



31,2 » 



— 



23,2 



23,6 



23,1 





18,1 



17,5 



18,1 





22,5 



20,8 



21,6 » 



— 



16,5 » 



15,1 



15.7 



— 



6,2 



6,9 



6,8 



— 



4,1 



3,1 



3,3 



— 



11,0 



10,2 



12,0 



11,1 mm 



22,5 



21,3 



21,5 



22,2 



10.0 



10.3 » 



9,6 



10,5 



19U. — Tail 

 230 mm. 



Sciurus caniceps. Bly tu. 



$ Pak Koll, Northern Siarn, 1? / 3 1914. — Tail = 255 mm.; hindfoot = 53 mm. - £ Pak Koh 21 /s 



280 mm.: — J 1 Ban Kon, Northern Siarn, M /ic> 1914. — Nose to vent =210 mm.: tail = 



All the specimens obtained are in their bright pelage, even that one shot in October. 

 In the Annals and Magazine of Natural History ser. 7. Vol. 7. 1901 p. 271. Bonhote states 

 that the dull pelage is worn from March to November. This statement seems, however, 

 to be misleading while the specimen shot on the llth of October is in its brigh t pelage. 



Skull measurements 



Greatest length 56,8 mm. 



Condylus to gnathion 51,6 



Basicranial length 48,3 



Zygomatic width 31,7 



Greatest width of brain case .... 24,2 



Length of nasals mesially 16,8 



Breadth of nasals anteriorly .... 6,7 



Breadth of nasals posteriorly .... 4,6 



Least interorbital breadih 18,6 » 



Least postorbital breadth 18,3 



Diastema 12,9 



Length of palate to henselion . . . 24,1 



Maxillary toothrow 10,8 



K. Sv. Vet. Akad. Handl. Band 57. N:o 2. 



58,0 mm. 



54,1 mm 



60,0 



49,0 » 



— 



45,2 



33,0 



31,9 » 



25,0 



24,3 » 



17,5 



16,1 » 



6,7 



7,2 » 



5,0 



4,8 » 



19,9 



18,6 



20,0 



18,2 > 



12,9 



12,2 » 



24,0 



23,0 



10,7 



10,5 » 



