NO. 1976. TREE8RREW8: FAMILY TUPAIID^—LYON. 95 



Geographic distribution. — Mount Dulit and probably neighboring 

 mountains in Sarawak, Borneo. See No. 25 on map on page 75. 



Diagnosis. — Distinguished by the greater frequency of the black 

 back patch, heavier rostrum, slightly larger and darker feet, and facial 

 portion of skull apparently larger and longer. (Plate 9, fig. 2.) 



Measurements. — Type: Head and body (dried skin), 215 mm.; tail 

 (dried skin), 140; hind foot, 45; condylobasal length, 47 ± ; zygomatic 

 width, 26.5; width of brain case, 19; maxillary tooth row, 18.5. For 

 individual measurements see table, page 96. 



RemarJcs. — A specimen with a well-defined dorsal stripe can cer- 

 tainly be identified with this subspecies, but if the stripe is practic- 

 ally obsolete as in Reg. No. 92.2.7.6, one is uncertain whether to 

 place the specimen in this subspecies or the next. The Dulit subspe- 

 cies appears to average larger than that from Kina Balu. 



Specimens examined. — Twelve from Mount Dulit. 



TUPAIA MONTANA BALUENSIS, new subspecies. 



Type-locality. — Mount Kina Balu, northeastern Borneo. 



Type-specimen. — In British Museum, Reg. No. 95.10.4.20, skin and 

 skull of adult collected at 3,000 feet on Mount Kina Balu, north- 

 eastern Borneo, March, 1887, by J. Whitehead; skin in fair condition; 

 skull with about a third of the right side of brain case wanting. 



GeograpMc distribution. — Known only from Mount Kina Balu, 

 Borneo. See No. 26 on map on page 75. 



Diagnosis. — Differs from Tupaia montana montana in the absence 

 of the distinct black back patch, smaller size; rostrum and whole 

 facial portion of skull smaller and shorter; hind feet not quite so dark 

 as in the typical form. 



Measurements. — Type: Head and body (dried skin), 190 mm.; tail 

 (dried skin), 90; hind foot, 39; condylobasal length, 43 ± ; maxillary 

 tooth row, 17. For measurements of two other individuals, which 

 differ considerably from this type in having the tail 125 mm. long, 

 see table, page 96. 



RemarJcs. — In certain lights there is a suggestion of the broad 

 dorsal stripe, which is almost as evident as in those Dulit specimens, 

 where the stripe is practically lacking. Mr. Thomas has this note 

 on the label of the type: "Of 15-20 specimens from Kina Balu 

 (A. Everett) carefully compared, and some quite old, with worn teeth, 

 not one had any trace of a dorsal line, not even as much as this." 

 The absence of the dorsal stripe would appear to be very constant in 

 this subspecies, much more so than the presence of the stripe is in 

 T. montana montana. The Kina Balu specimens were identified by 

 Mr. Thomas in 1889* as Tupaia ferruginea. 



Specimens examined. — Three from Mount Kina Balu. 



' Proc. Zool. Soc. London, 1889, p. 229. 



