NO. 1976. TREEBHREW8: FAMILY TUPAIID^— LYON. 89 



tail almost clear orange rufous; underparts, including inner side of 

 legs, and short appressed hairs on underside of tail, ochraceous buff; 

 feet blackish brown finely lined with ochraceous. 



Shull and teeth. — Not essentially different from those of Twpaia 

 lucida or T. splendidula, but distinctly smaller, especially the teeth, 

 as compared with T. chrysomalla. 



Measurements. — Type: Head and body, 176 mm.; tail, 146; hind 

 foot, 43; condylo-basal length, 45.5; zygomatic width, 23.5; viidthof 

 brain case, 19; maxillary tooth row, 18. See table, page 93. 



Remarks. — Tupaia riahus is a very different treeshrew from its 

 geographic neighbors, and externally and cranially appears to be 

 more closely related to T. lucida of the Natunas. It is interesting to 

 note that Pulos Laut and Riabu are about the same general area. 

 Tupaia riahus was collected on a second visit to the Anamba Islands 

 by Doctor Abbott in 1900, and hence was not included in Mr. Mil- 

 ler's account of the mammals of the Anamba and other islands 

 published m the same year.^ 



Specimens examined. — Two, the type, and a young individual also 

 from Pulo Riabu. 



TUPAIA ANAMB.^, new species. 



Type-locality. — Pulo Jimaja, Anamba Islands. 



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

 101743, skin and skull of adult male collected on Pulo Jimaja, 

 Anamba Islands, September 23, 1899, by Dr. W", L. Abbott. 



Diagnosis. — Very closely allied to Tupaia chrysomalla of Pulo 

 Siantan, but distinguished by a generally less reddish coloration of 

 head and body; mammae probably 2-2 = 4. 



Geographic distribution. — Known only from Pulo Jimaja, Anamba 

 Islands. See No. 35 on map on page 75. 



Color. — The color of Tupaia anamhse is so like that of T. chrysomalla 

 that no detailed description is necessary. The ferruginous or chestnut- 

 like color in T. chrysomalla is much lighter in color and replaced by a 

 color something like tawny ochraceous ; the whole lower back, rump, 

 and thighs are lighter; the underparts are lighter more buffy and 

 less ochraceous than in T. chrysomalla, but the tawny ochraceous color 

 of the underside of the tail is of a darker shade in T. anamhse. Some 

 of the difference in color may be due to difference in pelage, as the 

 type of chrysomalla appears to be in an old pelage, while the type 

 of T. anamhse- is mostly in a fresh pelage. There is one skin of 

 T. anamhse, Cat. No. 101741, which has just begun to change pelage, 

 and while not appearing so distinct from T. chrysomalla as the type 

 skin of T. anamhse, it has distinct though slight color differences and 



1 Mammals collected by Dr. W. L. Abbott on islands in the South China Sea, Proc. Wash. Acad, Sci., 

 vol. 2, pp. 203-246, August 20, 1900. 



