some Uiifjudl Plndanges. 313 



3. The reference of KrelFt^s Mylodon plialaiiges to Thijla- 



coleo on the part of Owen was purely " conjectural " 

 (to use his own expression), but at the sarae time a 

 clever piece of tleduction hased on his view of the 

 carnivorous habits of the " iMarsunial Lion/' 



4. If we accept for the time being, the phalanges called 



Mijlodon ? australis as tliose of Thylacoleo, such 

 acceptance will not in the least strengthen the views 

 held either by Owen on the one hand, or Flower and 

 his followers on the other, as to the gastronomical 

 habits of Thylucoleo, hooded phalanges occurring 

 amongst both herbivorous and carnivorous animals. 



5. As possibly referable to Thylucoleo Owen figured two 



entirely distinct types of ungual phalanges. 



We are now acquainted with the pedal bones of D'lpro- 

 todon through the researches of Prof. E. C. Stirling, and it 

 can be legitimately surmised that those of its second 

 cousins Notuf/ieriuiii and Euotvetiia were similar. None of 

 the Macropodidte can put in a claim ; amongst the flesh- 

 eaters, Sarcopldlus and Thylacinus , and the Dasyures, with 

 the non-marsupial Warrigal, the osteological structure is 

 too well known to require comment. 



Finally, in all probability, although "conjectural'"' Owen's 

 view of the nature of the hooded nail (eliminating those 

 \>iihout a sheath) bones will in the loug run prove to be 

 correct; reduction of other genera by elimination su])ports 

 it. If such be the ca^e, then what is the claw referred 

 to Tlnjlacoleo by Lydekker? This will be investigated 

 in.mrdiately. 



The following is the synonymic bibliography of Krefft's 

 ungual phalanges : — 



Mylodon'^ australis, Krefft, Guide Au«tr. Foss. Remains, 



1870, p. 4. 



„ australis, KrefFt, Austr. Vert. Foss. & Recent 



(Industrial Progress of New South Wales), 



1871, p. 715. 



Sjjelcean Animal or Unguiculate Mammal, Owen (pars), 



Phil. Trans. 1871, pt. i. pp. 262, 263, pi. xiii. 



figs. 11-12 {nua 13, 14). 

 Megatheroid Animal, Krefft, Ann. & Mag. Nat. Hist. (4) 



X. 1872, p. 180. 

 SjjL'laan Animal .... Thylucoleo, Owen, Foss. Remains 



Extinct Manim. Austr. i. 1^77, pp. 182-lt'3, 



ii. pi. ix. figs. 11-12. 



