NO. 1498. MAMMALS OF BANKA AND BILLITON— LYON. 597 



slopes backward and does not project antero-superiorly in a well-marked 

 rounded angle. The audital bulla in 2£as dahatus is more compressed 

 laterally and deeper dor.so-ventrally than it is in the other members of 

 the eoncoJor group. The teeth are much worn in the single specimen. 

 Compared with the type of J\f. surdus the last upper molar is reduced 

 in size. 



Meamrements.- — Type: Total length, 281 mm.; head and bod}^, 1-13; 

 tail vetebra?, 13S; hind foot, 25; greatest length of skull, 31; palatal 

 length, 17.1; palatilar length, 15.3; zygomatic breadth, 11.9; interor- 

 bital constriction, 5.0; nasals, 10.9; diastema, 9.9; width of external 

 plate of infraorbital foramen at middle, 3.7 (in M. surdw^^ type, 1.2); 

 maxillar}" tooth row (alveoli), 5.6; mandible, condyle to front of 

 symphj'sis, 18.2; mandibular tooth row (alveoli), 5.2, 



Specimens examined. — One, the type. 



Remarks.-— Mils clahatus., while indistinguishable externally from 

 M. surdus^ is easily separable by the shape of the external plate of 

 the infraorbital foramen, not only from it, but also from 3Ius concolor 

 of the Malay Peninsula, from Sumatran and Bornean forms of concolor 

 and from Mus puUns from Tioman Island. 



VIVERRA TANGALUNGA Gray. 



1905. Viverrn tangalunga AVillink, Natuurkundig Tijdschrift Nederlandsch- 

 Indie, LXV, p. 210. 



Two individuals were collected by Doctor Abbott on the island of 

 Billiton. None were taken on Banka. For table of measurements, 

 see page 600. 



PARADOXURUS HERMAPHRODITUS ( Pallas, in Schreber). 



Two Paradoxures were secured in the island of Banka. They show 

 no appreciable differences in respect to color and to shape and size of 

 skull and teeth from specimens of Paradoxurus liermaphroditus from 

 the Malay Peninsula. For table of measurements, see page 600. 



PARADOXURUS CANESCENS, new species. 



Type.~%Vm and skull of adult male, Cat. No. 121943 U.S.N.INL, 

 collected at Tanjong Batu, Island of Billiton, between Sumatra and 

 Borneo, July 19, 1901, by Dr. W. L. Abbott. Original number 3520. 



Diagnostic characters. — Similar to Paradoxurus 2)hilipj)inensis, of 

 the Philippine Islands and Borneo, but with a decided gray color about 

 the head and the anterior third of the body. 



Color.— Ty^e: Sides of nose and region of base of whiskers, whitish 

 cream buff; nose and top of nose back as far as line connecting inner 

 canthus of eyes, brownish black, which color extends as a ring about 

 5 mm. wide around the eye and downward to the lips for a width of 

 10-12 mm. behind base of whiskers. Ill-defined spot under eye dirty 



