254 , BASTUEIDiB. 



6'. Body not white-spotted. Size small, 

 form slender. 

 <?. Hind foot broad ; soles smooth, 



naked. Hallux present 4. Phascologalb, p. 273. 



cP. Hind foot narrow ; soles granula- 

 ted or hairy. 

 a^. Hallux present. Limbs of ordi- 

 nary proportions 6. SmikthopSis, p. 298. 



6^. Hallux absent. Limbs unusually 



elongated 6. Antbchinomys, p. 309. 



B. Tongue long, extensile. Lower lip pointed, 



projecting far in front of the teeth . . ]y[3rnnecobiinse. 

 u. Back transversely banded with white. 



Hallux absent 7. Mybmecobitjs, p. 311. 



IL Ceanial Characiers. 



A. Posterior teeth large and strong. Molars 5. 



Bony palate short Das3ruxinae. 



a. Lower molars sharp-edged, the main 

 cusp without internal secondary cusps. 



a}. Premolars 3. Muzzle long and slender 1. Thylacinus, p. 255. 

 Ji. Premolars ^. Muzzle short and broad 2. Sarcophilus, p. 258. 

 h. Lower molars multicuspidate, with pro- 

 minent internal secondary cusps. 



e\ Premolars ^ 3. Dasyurus, p. 261. 



(V-. Premolars g (rarely ■^. 



a'. Nasals much expanded behind. 

 Lower p.* usually decidedly 



smaller than p.' 4, Phascologalb, p. 273. 



h'. Nasalsnoteipandedbehind. Lower 

 p.* nearly as large as or larger 

 than p.^ 

 a^. BullsB small, their mastoid por- 

 tion not swollen 6. Sminthopsis, p. 298. 



v. Bullse disproportionally large, 



their mastoid portion swollen 6. Antkchinomys, p.309. 



B. Posteriorteeth small and delicate. Molars 



more than j. ' Palate elongated Mjmnecobiinae. 



c. Premolars 3. Molstrs g^^ 7. Myrmbcobius, p. 311. 



Subfamily I. DASYURIN^. 



Tongue short, simple, not extensile. No gland on the chest. 

 Premasillse united or closely applied to each other in front. Palate 

 not unusually produced backwards. Molars large, four in number 

 above and below, the lower ones with the outer series of cusps 

 sometimes alone developed, and always larger than the inner. 



