340 SHUFELDT. 
EXPLANATION OF PLATE XXV. 
Norte. — The figures in this Plate were all drawn by the author from the skeleton 
of a single individual, an adult male, and are all of natural size. 
Fic. 1, The skull of A. virgata, seen directly from above; mandible removed. 
Fic. 2. The skull of 4. virgata, seen upon basal aspect; mandible removed. 
Fic. 3. The skull of 4. vixgaza, seen upon direct lateral view ; right side, includ- 
ing the mandible. 
Fic. 4. The mandible of 4. vivgaza, direct superior view. 
Fic. 5. The right tarso-metatarsus of 4. vivgaza, anterior view. 
Fic. 6. The right radius of 4. virgata, palmar aspect. 
Fic. 7. The right ulna of 4. virgata, palmar aspect. 
Fic. 8. The right fibula of 4. virgada, inner side. 
Fic. 9. The right tibio-tarsus of A. virgata, mesial aspect. 
Fic. 10. The right femur of 4. vzvgata, anterior surface. 
Fic. 11. The os furcula of 4. virgata, seen obliquely from the right side. 
Fic. 12. The sternum of 4. vixgata, seen upon right lateral aspect. 
Fic. 13. The right carpo-metacarpus of A. virgata, anconal surface; pollex pha- 
lanx 272 s2¢z. ; 
Fic. 14. The right proximal phalanx of the index digit of 4. virgata, anconal 
side. 
Fic. 15. The sternum of 4. vzrgata, seen upon direct anterior view. 
Fic. 16. The left coracoid and scapula of 4. virgata, outer aspect, and articula- 
ted 27 sttu. 
Fic. 17. The right coracoid of A. vi~ga¢a, seen upon direct anterior view. 
Fic. 18. The left humerus of 4. vivgaza, palmar aspect. 
Fic. 19. The left humerus of 4. virgata, anconal aspect. 
Fic. 20. The four last vertebra of the skeleton of the tail of 4. vixgata, and the 
pygostyle, seen upon the right lateral aspect. 
Fic. 21. The pelvis of 4. virgata, dorsal view. 
