90 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



is quite as good a form as many of the recognized insular forms of 

 T. glis. 



STcuTL and teeth. — The skull and teeth of Tupaia anambx do not 

 show any differences from those of T. chrysomalla. 



Measurements — Type: Head and body, 178 mm.; tail, 152; hind 

 foot, 47.5; condylo-basal length, 24.5; zygomatic width, 18.5; maxil- 

 lary tooth row, 18.5. See also table, page 93. 



RemarJcs. — -The treeshrews of the Anamba Islands fall into two 

 groups, the species on Pulo Riabu closely related to Tupaia 

 liicida of the Natuna Islands and the form on Pulo Jimaja and 

 Pulo Siantan, closely related to one another and not being closely 

 allied to any other form. All three of the islands are separated by 

 water of about the same depth, and approximately the same depth 

 of water is found between them and Borneo on one side and the Malay 

 Peninsula on the other. In many respects Tupaia chrysomalla and 

 anamhse. show many resemblances to T. glis ferruginea in color of the 

 head and body, but their smaller size and color of the tail serve 

 to distinguish them. 



Specimens examined. — Three, all from Pulo Jimaja. 



TUPAIA CASTANEA Miller. 



1903. Tupaia castanea Miller, Smiths. Misc. Coll., vol. 45, p. 54, November 6, 

 1903. 



Type-locality. — Pulo Bintang, Rhio Archipelago, East Indies. 



Type-specimen. — In United States National Museum, Cat. No. 

 115608, skin and skull of adult female collected on Pulo Bintang, 

 August 11, 1902, by Dr. W. L. Abbott, original number, 1872; in 

 good condition. 



Geographic distribution. — Known only from Pulo Bintang. See No. 

 17 on map on page 75. 



Diagnosis. — Related to Tupaia splendidula, but not so dark in 

 color, and in size equalling T. glis ferruginea; mammae, 2-2 = 4. 



Color. — General color effect of upper parts of back of head, neck, 

 and body and outer side of legs something between hazel and chestnut, 

 but rather darker and brighter; on closer examination this effect 

 seen to be produced by an indistinct and coarse grizzling of black and 

 a color something like a rich dark ferruginous; front of head a fine 

 grizzle of blackish and ochraceous or tawny ochraceous; tail above 

 similar to the back in places, especially near base or else a color 

 between orange rufous and cinnamon rufous; underside of tail 

 between orange and cinnamon rufous; general color of under parts, 

 including innerside of legs, between ochraceous and tawny ochraceous, 

 with darker bases of hairs showing through in places, especially on 

 the inner side of legs; hands and feet a fine grizzle of blackish and 

 ochraceous; shoulder stripe moderately distinct, light tawny ochrace- 

 ous or ochraceous rufous. 



