152 PHALAHSEEIDiE, 



J. B. Pisch. Syn. Mamm. p. 278 (1829); Gray, Grey's Auttr., 



App. ii. p. 402 (1841) ; Wagn. Schr. Saug. Supp. iii. p. 89 (1843), 



V. p. 278 (1856) ; Schinz, Syn. Mamm. i. p. 532 (1844) ; Owen, 



Odontogr. Atl. pi. c. fig. 4 (teeth) (1845) ; Gieb. Odontogr. p. 42, 



pi. xviii. fig. 4 (teeth) (1855). 

 Petaurista flaviventer, Desm. Mamm. i. p. 269 (1820) ; Gray, Griff. 



Cfuv. An. S. V. p. 199 (1827) ; Waterh. Cat. Mamm. Mus. Z. S. 



p. 68 (1838). 

 Petaurus (Belidens) flaidventer, Waterh. Jard. Nat. Libr., Mamm. 



xi. p. 286 (1841) ; id. N. H. Mamm. i. p. 327 (1846). 

 Belideus flavi-venter, Less. N. Tabl. R. A., Mamm. p. 189 (1842) ; 



Gould, Mamm. Austr. i. pi. xxiii. (animal) (1845) ; Benn. P. Z. 8. 



1859, p. 218 (habits); JSi-efft, Cat. Mamm. Amtr. Mas. p. 39 



(1864) ; id. Mamm. Austr. text to pi. vii. p. 2 (1871) ; Dobs. J. 



Anat. Phys. xvii. p. 150 (1882). 

 Petaurns cunninghami, Gray, List Mamm. B. M. p. 83 (in synomymy) 



(1843). 

 Yellow-bellied Pltino Phalaitseb. 



Size large. Fur long, soft and silky. General colour brown, 

 Tariously marked with dark orange and black. Khinaiium large, 

 naked, finely granulated. Face yellowish brown, darker on the 

 crown, on the sides of the muzzle, round the eyes, and at the back 

 of the ear basaUy. Ears long, laid forward (in spiriVspecimens) 

 they just fall short of the top of the muzzle ; narrow, evenly OTal, 

 naked altogether inside and terminally outside, their bases behind 

 dark brown, except that there is a prominent yellowish patch along 

 their posterior margins. Hairs of back dark brown or nearly black 

 along the median line and on the upper surface of the parachutes ; 

 slaty grey tipped with dark orange along the sides of the back, and 

 on a distinct lighter line running down the upper {outer in the 

 ordinary quadrupedal position) sides of the thighs. Edge of para- 

 chute margined with orange, except just near its origin and insertion, 

 where it is broadly fringed with black. Posterior edge of thighs 

 also margined with black. Chin, inner sides of wrists, and ankles 

 blackish; otherwise the whole of the under surface and the inner sides 

 of the limbs uniform deep orange *. Hands and feet above wholly 

 black. Mammae 2 t. Palms (PI. XV. fig. 11) and soles naked, 

 finely striated, the part under the ankle, however, thickly hairy ; the 

 pads broad, rounded, not sharply defined. Length of fore toes in 

 the following order — 5, 4, 3, 2, 1. Claws very large and powerful, 

 strongly curved. Tail enormously long, very bushy, especially at 

 its base, evenly but slightly tapering to its tip ; its colour generally 

 greyish above, and orange below basally, gradually darkening to 

 black at its tip. 



Skull broad and rounded, with a sharp-pointed mvizzle. Nasals 

 much expanded behind, their greatest breadth nearly two thirds 



* This colour fades on exposure to light, and becomes a dirty yellowish 

 white. 



+ So far as can be made out from specimen g, the only adult female in spirit 

 available. 



