NO. 1577. MAMMALS COLLECTED IN WESTERN BORNEO— LYON. 



557 



1907. 



SCIURUS HIPPURELLUS Lyon. 

 Sciurus hippurelhis Lyon, Smithsonian Misc. Coll., L, p. 27, April 8, 1907. 



Thi-ee specimens, two from the Landak River and one from the 

 Kapuas River below Tyan. For measurements, see table below. 



Measurements of squirrels from western Borneo. 



Name. 



Localitv- 



N um- 

 ber. 



Sex and age. 



S. dulitensis 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



<S. hippurellus . 



Do 



Pontianak 



Sungei Sama 



Sanggau 



do 



Kapuas River below 

 Pulo Limbang. 



Kwala Pontianak 



do 



Do. 



R. ephippium. 



Do 



Do 



Do. 



Sungei Sama 



Sanggau 



Kapuas River below 

 Tyan. 



La n d a k River, Nga- 

 bong. 



Landak River, Batu 

 Ampar. 



Sanggau 



North bank of Kapuas. 



Sanggau district. Sun- 

 gei Sakaiam. 



Kapuas River, opposite 

 Pulo Jambu. 



142275 

 1422''6 

 142277 

 1422''8 

 142279 



142280 

 142281 

 142282 

 142283 

 142272 



142273 



142332 

 142333 

 142334 



Male, immature. 



Male, adult 



do 



do 



do 



Female, adult. 

 Female, young 



do..! 



do 



Male, adult 



Female, adult. 

 Female, old 



Male, adult 



do 



Female, adult.. 



Female, nearly 

 adult. 



mm. 



29.'6 

 28.8 

 29.9 

 30.0 



31.7 

 27.8 

 28.3 

 29.0 

 34.2 



34.2 



35.7 



43.4 

 40.4 

 42.0 



mm. 

 17.4 

 17.5 

 16.7 

 17.3 

 17.3 



18.3 

 16.6 

 17.4 

 16.0 

 18.2 



19.5 



28.3 

 25.7 

 29 



a Collector's measurements. 



RATUFA EPHIPPIUM (Miiller) 



1838-39. Sciurus ephippium Mullek. Tijds. Natuur. Geschied. Physiol., V, p. 147. 



Four specimens collected by Doctor Abbott in western Borneo 

 agree fairly well with the original description, with the published 

 figure, « and with notes made on the tj^pe in Leiden in 1904 by Mr. 

 Gerrit S. Miller, jr., who remarks: " No locahty can be given beyond 

 southeastern Borneo in the low country," and further: ''The plate" 

 is a good representation of this specimen, except that color is a little 

 too light, especially on_ cheeks, neck, feet, and along the sides, and 

 the dark dorsal area does not come down far enough on the liips." 



Of Doctor Abbott's specimens, Cat. No. 142334, U.S.N.M., from 

 Sungei Sakaiam agree best with Miiller' s figure as modified by Mr. 

 Miller's statement. The other three specimens are lighter and duller 

 colored; especially along the sides and thighs, where they are even 

 Hghter in color than Midler's figure. The skulls show no essential 

 differences from Mailer's figures, although in general the rostnmi is 

 less pointed; but this maybe accounted for by a certain degree of 

 immaturity in the skull figured by liim, which shows a distinct 

 fronto-parietal suture which is always lacking in fully adult skulls. 



a Verhandl. Natuur. Geschied. Nederl., 1839-1844, p. 91, pi. xiii. 



