56 SMITHSONIAN AIISCELLANEOUS COLLECTIONS [vOL. ^S 



coast of Johore by only ii miles, while nearly 300 miles of open 

 water lie between it and the Anambas, and a similar expanse sepa- 

 rates the latter group from the Natunas. This apparent anomaly is 

 doubtless in large part due to our very fragmentary knowledge of 

 the fauna of the larger Malayan land masses. 



TUPAIA PULONIS sp. nov. 



Type. — Adult female (skin and skull), No. 112,449, United States 

 National Museum. Collected on Pulo Aor, ofif coast of Johore, June 

 7, 1 90 1, by Dr. W. L. Abbott. Original number, 1023. 



Characters. — Similar to T^tpaia fcrniginca Raffles, but size larger, 

 color of underparts much paler, and skull with rostral portion less 

 elongate. 



Color. — Back and sides ochraceous-rufous, inconspicuously 

 speckled by the black hair tips. On sides the ground color becomes 

 somewhat lighter, and on neck, shoulders, and outer surface of front 

 legs it fades to ochraceous-buff, the speckling at the same time be- 

 coming more evident. Head and feet an indefinite grizzled brown, 

 the exact shade not far from the hair-brown of Ridgway. Shoulder 

 stripes distinct, cream-buff. Underparts and inner surface of legs 

 cream-bufif in strong contrast with color of sides. Tail somewhat 

 lighter than back, its upper surface a grizzle of black and dull 

 cream-bufif, its under surface clear bufif at middle, grizzled bufif and 

 black along edges and at tip. 



Skull and teeth. — The skull is larger than that of Tupaia ferruginea 

 throughout, and in form it is relatively broader and more robust, 

 particularly in the rostral portion. Teeth larger than tliqse of 

 Tupaia ferruginea, but of similar form. The larger size of the teeth 

 is especially noticeable in the anterior upper molar, the posterior 

 lower premolar, and the first and second lower molars. 



Measurements. — External measurements of type : total length, 

 372; head and body, 197; tail vertebrae, 175; hind foot, 42 (40). 

 External measurements of immature^ male from the type locality: 

 total length, 385 ; head and body, 195 ; tail vertebrae, 190; hind foot, 



44 (42). 



Cranial measurements of type: greatest length, 51.4 (49) ;- basal 

 length, 45.8 (43) ; basilar length, 44.6 (41.6) ; palatal length, 27 

 (25.4) ; diastema, 3 (3.6) ; breadth of palate at middle of diastema, 

 6.8 (5.4) ; breadth of palate between middle molars, 9.8 (8) ; least 



1 Permanent dentition not \vliolly in place. 



^Measurements in parenthesis are those of an adnU female Tupaia ferru- 

 ginea from Tanjong Dungun, Tringanu (No. 105,029). 



