134 MILLER 



than in the Bornean animal and light shoulder markings less distinct 

 and sharply defined. Under side of tail light orange-rufous, darkening 

 to ferruginous toward edge. (In T. tatia these colors are replaced by 

 dull ferruginous and hazel respectively.) 



Sktill and teeth. — The skull is throughout much smaller than in 

 specimens of Tupaia tana from Borneo. In form it differs from 

 that of 1 . tana in less slender and elongate rostrum, narrower brain- 

 case and slightly shorter audital bullae. Suborbital vacuity much 

 broader than in T. tana. Teeth as in the Bornean animal. 



Measurements. — External measurements of type : Total length 355 ; 

 head and body 203 ; tail vertebrae 152 ; hind foot 46.4 (44). Average 

 and extremes of four adults from the type locality : total length 367 

 (365-371) ; head and body 203; tail vertebrae 163 (162-16S) ; hind 

 foot 45.4 (44-46.6); hind foot without claws 42.5 (41-44). 



Cranial measurements of type: greatest length 54.6 (61);' basal 

 length 49 (54) ; basilar length 46.4 (51) ; median palatal length 48 

 (53) ; distance from lachrymal notch to tip of premaxillary 27.6 (31) ; 

 least interorbital breadth 14.4 (16) ; zygomatic breadth 25 (28.4) ; 

 mandible 38 (41) ; maxillary toothrow (behind diastema) 20 (21.4) ; 

 mandibular toothrow (behind diastema) 17 (18). 



Specimens examined. — Five, all from the type locality. 



GALEOPITHECUS VOLANS (Linnaeus). 



1894. Galeopiihecus 7wlans Thomas and Hartert, Novitates Zoologicae, i, 

 p. 657. September, 1894 (Bunguran and Sirhassen). 



Two specimens from Sirhassen and two (one yovmg in alcohol), 

 from Bunguran. Also foetus of one of the Sirhassen specimens. 



EMBALLONURA ANAMBENSIS Miller. 



Four specimens from Bunguran. These agree essentially with the 

 Anamba animal, but show some slight cranial peculiarities. 



PIPISTRELLUS SUBULIDENS sp. nov. 



Type. — Adult female (in alcohol) No. 104758 U. S. National 

 Museum. Collected on Sirhassen Island, South Natunas, June 3, 

 1900. 



Characters. — Similar to Pipistrellus pipistrellus (Schreber) in 

 size, color and external form, but skull with broader rostrum, and inner 

 upper incisor without supplemental cusp. 



'Measurements in parentheses are those of an adult male Bornean Ttipaia 

 ta7ia. 



