144 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



dull as in the south Bornean race, and in some of the others nearly 

 as bright and light as in the north Bornean race. (Plate 11, fig. 3.) 



Measurements. — Type: Head and body, 203 mm. ; tail, 152; hind foot, 

 47; condylo-basal length, 51.5; zygomatic ^^'idth, 25; width of brain 

 case, 19.5; maxillary tooth row, 20. Maximum and minimum meas- 

 urements of four adult specimens : Head and body, 203-203 mm.; ^ tail, 

 152-162;^ hind foot, 45-47; condylo-basal length, 51.5-53; zygomatic 

 width, 25-26; width of brain case, 19-19.5; maxillary tooth row, 

 19-20.5. See table, page 149. 



Remarl's. — Tana tana sirhassenensis is a fairly well-marked form 

 of long-nosed treeshrew, but hardly distinct enough to warrant 

 specific separation. In color it closely resembles the north Bornean 

 race and its maximum measurements easily extend into the range 

 of the mainland forms. In 1894 Thomas and Hartert - considered 

 it identical Avith that form under the name Twpaia tana. 



Specimens examined. — Eight, all from Sirhassen Island. 



TANA TANA BUNO.E (MUler.) 



1900. Tupaia hunose. Miller, Proc. Wash. Acad. Sci., vol. 2, p. 229, August 



20, 1900. 

 1904. [Tupaia] bunoai (sic) Trouessart, Cat. Mam. Suppl., 1904, p. 123. 



Type-locality. — Pulo Bunoa, Tambelan Islands, South China Sea. 



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

 101640, skin and skull of adult female collected on Pulo Bunoa, 

 Tambelan Islands, August 5, 1899, by Dr. W. L. Abbott, in good 

 condition. 



Geographic distribution. — The Tambelan Islands, Pulos Bunoa, and 

 Big Tambelan. See No. 6 on map on page 143. 



Diagnosis. — ^Yery much like Tana tana tana in general coloration, 

 but sides slightly brighter in color, and under parts lighter and paler, 

 tending more toward ochraceous; tail very distinctly shorter, hind 

 foot shorter and skull slightly smaller. (Plate 11. fig. 5.) 



Measurements. — Type: Head and body, 210 mm. ; tail, 152; hindfoot, 

 45; condylo-basal length, 53.5; zygomatic width, 26; wddth of brain 

 case, 20; maxillary tooth row, 19.5. The rest of the specimens do 

 not differ materially from the type. See table, page 149. 



RemarJcs. — The shortness of tail and hind foot of this race would 

 be sufficient to warrant its specific distinction from Tana tana tana 

 were it notfor T. t. sirhassenensis, which bridges the gap between them 

 so far as size is concerned. It differs from T. t. sirhassenensis in its 

 duller color of the upper parts, and its very much duller and lighter 

 color of the underparts tending to dull ochraceousf or ochraceous 

 buff instead of ochraceous rufous. 



Specimens examined. — Four, two from Big Tambelan and two from 

 Bunoa, Tambelan Islands. 



• Vhese mea-surements were made by Dr. W. L. Abbott in the flesh in inches, the head and body of 

 all the adults being 8 inches; fractions of an inch were probably disregarded. 

 ' Nov. Zool., vol. 1, p. 657, September, 1S94. 



