444 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.52. 



Geographic distribution. — ^Tana Bala and Tana Masa of the Batu 

 Islands, and probably other islands of the same group. 



Diagnostic characters. — A subspecies of Sciurus mansalaHs with 

 relatively dark upper parts, resembling those of S. m. mansalaris, but 

 under parts distinctly washed with buffy, shghtly more than in the 

 case of S. m. hancarus; hght subterminal annulation of long hairs of 

 tail narrower and more buffy, and less whitish than in the case of the 

 other two races. 



Measurements. — Type: Head and body, 160 mm.; tail, 100; hind 

 foot, 37; condylobasal length, estimated, 35; zygomatic width, 

 estimated, 24; width of brain case, 18; maxillary tooth row, 7. 



Specimens examined. — Six skins and skulls from Tana Bala, and 

 two from Tana Masa. 



Remarlcs. — This is a rather poorly characterized geographic race, 

 somewhat intermediate in many respects between the typical form 

 and Sciurus mansalaris hancarus Miller of Pulo Bankaru. The recog- 

 nition of the others makes that of the Batu squirrel imperative, as it 

 can not be perfectly associated with the Mansalar or Bankaru forms. 



RHINOSCIURUS INCULTUS, new species. 



1903. RMnosciurus Inticaudatus, Miller, Proc. U.S.Nat.Mus., vol, 26, p. 458, 

 February 3, 1903. 



Type-specimen. — No. 114414, U.S.N.M,, skin and skull, adult 

 female, collected on Pulo Tuanku, Banjak Island, February 5, 1902, 

 by Dr. W. L. Abbott; original number 1515. 



Geographic distribution. — Known only from Pulo Tuanku. 



Diagnostic characters. — Closely related to Rhinosciurus tupaioides ^ 

 (Malay Peninsula, Singapore), R. peracer - (Perak), R. leo^ (Singa- 

 pore), R. robinsoni ^ (Tioman Island), R. rhionis ^ (Rhio Archipelago), 

 R. laticaudatus * (Borneo) ; characterized by general dull, dark colora- 

 tion; ochraceous buff fringe on tail, absence of shoulder stripe; dull 

 buffy underparts, long, slender rostrum, moderate sized bullae, large 

 teeth. 



Color. — Upper parts, head, neck, and body, and outerside of legs 

 a mixture of blackish and ochraceous orange, the darker color much 

 in excess, especially in middle of back, and the lighter color tending 

 torward yellow ocher about the head and neck ; miderparts, including 

 innerside of legs, dull whitish or buffy, sparsely admixed with a few 

 brownish haire ; tail with about the same colors as the back, but the 

 light and dark elements very coarsely mixed and in about equal pro- 

 portions, the Hght color of the tail becoming ochraceous buff, which 

 forms a fairly weU-defined fringe around it. 



1 Blyth, Jouni. Asiat. Soc. Bengal, vol. 24, 1855, p. 477. 



2 Thomas and Wroughton, Ann. Mag. Nat. Hist., ser. 8, vol. 3, p. 440, May, 1909. 



3 Thomas, Joum. Fed. Malay States Mus., vol. 2, p. 104, October 10, 1908. 



* Miiller and Schlegel, Verb. Nat. Gesch. Nederl. Overz. Bezitt. Eekhorens, 1S42, pp. 87, 100, pi. 15. 



