110 MAMMALIA. MARSUPIALIA. 



conical ; five toes on the fore-feet, with crooked nails ; four 

 on the hind-feet, and short thumb without a nail ; tail long, 

 covered with hair ; an abdominal pouch in the females. 



D. cynocephaluf f Geoff. Desm. Fur yellowish brown ; crupper 

 marked with transverse black bands ; tail compressed. Nearly 

 four feet long. Van Dieman's Land Lin. Trans, ix. pi. 19. 

 M. Temrrunck makes a new genus of this species under the name of Thylacynus. 



D. ur sinus, Geoff. Desm. Shaw. Fur black ; tail not very long, 

 slightly prehensile, naked below. Van Dieman's Land. Lin. 

 Trans, ix. pi. 19. 



D. macrourus, Geoff. (Vivcrra maculata, Shaw.) Fur chestnut-co- 

 loured, spotted with white ,* tail also spotted. About the size of 

 a cat. New Holland Peron, Alias, pi. 33. 



D. Maugeiy Geoff. Fur olive-coloured, spotted with white ; tail 

 without spots. New Holland. 



D. Vivcrrinus, Geoff. Fur black, spotted with white ; tail without 

 spots. About the size of a rat. New Holland. Shaw, i. pi. 111. 



D. tafa, Geoff. (Viverrine Opossum, Shaw.) Fur uniform grayish 

 brown, without spots. New Holland Shaw, i. pi. 111. 



D. penicillatus, Geoff. (Didelphispenicillata, Shaw.) Fur ash-colour- 

 ed, not spotted ; tail black and tufted. New Holland Shaw, i. 

 pi. 113. 



D. minimus, Geoff. Fur red, not spotted, with tail of the same co- 

 lour. Van Dieman's Land. 



The last two species form the genus Pltascogale of Temminck. 



Gen. 84. PERAMELES, Geoff. Didelphis, Shaw. 



Incisors \, or 1 5 , canines |-}, molars ?-?, or g-g, 50. 

 Crowns of the molar teeth acutely tubercular ; head very 

 long ; muzzle pointed ; eyes lateral ; fore-feet with five toes, 

 the three middle ones largest ; the thumb rudimentary ; hind- 

 feet very long, with four toes, two internal and very small, 

 the third very robust ; tail long, pointed ; base thick and 

 naked beneath, not prehensile. 



P. nasuta, Geoff. Desm. Head very long ; muzzle slender ; nose 

 prolonged ; fur grayish brown, white beneath. Incisors *g . New 

 Holland. An. Mus. iv. pi. 44. 



P. Bougainvillii, Gaimard. Head long ; ears ovate, acute ; body red 

 above, gray beneath. Griff. Syn. 195. 



P. obesula, Geoff. (Didelphis obesula, Shaw.) Incisors \p ; head 

 rather short ; forehead convex ; fur reddish yellow, white below. 

 New Holland. An. Mus. iv. pi. 45. 



Gen. 85. PHALANGISTA, Geoff. Cuv. Didelphis 9 Shaw, Gmel. 

 Incisors |, canines J-J, or g-g, false molars or false canines 



