NO. 2188. MAMMALS FROM ISLANDS OFF SUMATRA— LYON. 443 



Specimen is of the brownish type of coloration. The brown color of 

 the hind feet may be the result of wear as the brown hairs covering 

 them look worn; the entire tail is brownish, but is ob\dously worn. 



SlcuU and teeth.— Aside from certain differences these are essen- 

 tially as they are in Paradoxurus hermaphroditus parvus, the distin- 

 guishing features being the conspicuous narrowness and less inflation 

 of the brain case, the heavier mandibular condyle, the general smaller 

 size of the teeth, and the greater antero-posterior diameter of the 

 upper canine. 



Measurements. — Type: Head and body, 495 mm., tail, 410; hindfoot, 

 77; condylobasal length, 97; zygomatic width, 53; width of brain case, 

 32; maxillary toothrow 35.6; width of brain case at level of coronal 

 suture 25.4 mm., same measurement in an adult female of nearly 

 equal age of Paradoxurus Jiermapliroditus parvus, 28.8. 



Specimens examined. — One, the typo. 



ARCTICTIS NIASENSIS, new species. 



Type-specimen. — No. 141230, U. S.N .M., imperfect pelt, collected on 

 Nias Island in 1905 by Dr. W. L. Abbott; original number 3970. 

 " Flat skin bought of native who had killed it in the hills near Fadoro, 

 said not to be common." — W. L. A. 



Diagnostic characters. — Distinguished from a fairly large number of 

 Malay bear-cats by having tips of certain of the hairs of upper parts 

 and the under parts ochraceous tawny instead of buff to oclu-aceous 

 buff. 



Color. — ^Upper parts of back of head, neck, body, and all of tail, 

 brownish black, coarsely and rather sparsely grizzled with oclu-aceous 

 tawny on the lower back, sides, outerside of legs, and proximal two- 

 thirds of tail; under parts tawny ochi'aceous. 



Measurements. — Base of tail to ear, 580 mm.; tail, 540. 



Specimens examined. — One. 



Remarlcs. — The tawny coloration of the grizzhng and of the under 

 parts is not seen in a rather large series of Malay skins of Arctictis hin^ 

 turong, and there seems Httle doubt as to the distinctness of the Nias 

 animal. It is a great misfortune not to have a perfect specimen, but 

 imperfect as it is, it does not match any of the others. Dr. Abbott 

 says that from the natives' descriptions of this animal it is undoubt- 

 edly a distinct form. 



Order RODENTIA. 



Family SCIURIDAE. 



SCIURUS MANSALARIS BATUS. new subspecies. 



Type-specimen. — Skin and skuU of adult male. No. 121732, 

 U.S.N.M., collected on Tana Bala, Batu Islands, February 4, 1903, 

 by Dr. W. L. Abbott; original number 2217. 



