IV 



LIST OF PLATES. 



XXIV. (continued). 



Fig. 2. Orycteropus. 



Fig. 3. Dasypus. 



Fig. 4. Myrmecophaga jubata ; all one- 

 third nat. size. 

 XXV. Fig. 1 and 2. Humerus, radius and 



ulna of Scelidotherium. 



Fig. 3. Head of humerus. 

 Fig. 4. Head of radius. 

 Fig. 5, 6, and 7. Femur of Scelidothe- 

 rium. 

 XXVI. Fig. 1,3, and 5. Astragalus of Mega- 

 therium. 

 Fig. 2, 4, and 6, Astragalus of Scelido- 

 therium . 



XXVII 



Fig. 1 and 2. Patella and head of tibia 



of Scelidotherium. 

 Fig. 3, 4, and 5. Ungueal phalanx of 



Scelido tli eri um . 



XXVIII. Fig. 1. Astragalus of Megatherium. 



Fig. 2. Astragalus of Scelidotherium. 

 Fig. 3 — 6. Astragalus of Mylodon or 



Meg along x. 

 XXIX. Lower jaw of Megalonyx Jeffersonii. 



. Fragment of the Cranium of Megathe- 

 rium Cuvieri. 

 XXXI. Section of the upper jaw and teeth of 



the Megatherium Cuvieri, 

 XXXII. Fig. 1. Magnified view of structure of 



molar of Megatherium. 

 Fig. 2 — 5. Ungueal phalanx and por- 

 tions of tesselated armour of 

 Hoplophorus euphractus. 

 Fig. 6 — 1 1 . Jaws and teeth of Ctenomys 



priscus. 



Fig. 12. Bones of right hind-foot of a 



Rodent. 

 Fig. 13 and 14. Fossil tooth of a Horse. 



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