594 



PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



claws, 22; ear from meatus, 12; greatest length of skull, 29; nasals, 

 median lino, 8; greatest breadth of skull, 17.3; diastema, 5.6; length 

 of upper molar series, 5.. 5. 



NANNOSCIURUS BANCANUS Lyon. 



1888. Sciurus soridnus Jenti^k, Mus. d'Hist. Nat., XII, Cat. Syst. Mammiferes, 

 p. 25. 



1905. Nunnosciurus melanotis Willixk, Natuurkundig Tijdschrift Nederlandsch- 

 Indie, LXV, p. 249. 



1906. Nannosciurus bancanus Lyon, Proc. Biol. Soc. Washington, XIX, p. 55, 

 May 1, 1906. 



Represented by 12 specimens, all from the island of Banka. None 

 were secured on Billiton. For table of measurements of this and 

 related species, see page 594. 



External and cranial measurements of pig) ay squirrels from Sumatra, Borneo, Java, 



Sinkep, and Banka. 



n Type. 

 MUS FIRMUS Miller. 



Five large gray rats, secured on Banka, show no appreciable differ- 

 ences from Mus firmvs Miller, from Linga. No rats of this group 

 were obtained on Billiton. For table of measurements, see page 595. 



