PLATE ir 

 [All the Figures on this Plate are of natural size] 



Fig. 10. Outer aspect of the distal portion of the right tibio-tarsus of Laornis 

 edvardsianus Marsh. (Type.) 



Fig. 11. Inner aspect of the right tarso-metatarsus of an adult Loon (Gavia 

 immer). Coll. U. S. Nat. ilus. (Unnumbered.) Compare with Fig. 12. 



Fig. 12. Inner aspect of the distal portion of the right tarso-metatarsus of 

 Baplornis adventis Marsh. Compare with Fig. 11 and Figs. 1-4 of Plate I. 



Fig. 13. Anterior view of distal end of the left tibio-tarsus of Aqiiila daiiajius 

 Marsh (T>pe.) 



Fig. 14. Postero-lateral aspect of the left tarso-metatarsus of an adult speci- 

 men of Griis canadensis. (No. 820, Coll. U. S. Nat. Mus.) 



Fig. 15. Postero-lateral aspect of the left tarso-metatarsus of Aldoniis nohilis 

 Marsh (Type). See also Plate \T, Figure 43. 



Fig. 16. Direct mesio-lateral view of the inner trochlear process of the right 

 tarso-metatarsus of Dialryma gigautea Cope. This is the specimen collected by 

 Marsh. In the Figure the plane of fracture is below. (See also Plate \ , Figure 

 30.) 



Fig. 17. Posterior aspect of the distal extremity of the left tibio-tarsus of a 

 specimen of the Snowy Owl (A'\'(7t(7 nycica). .Adult (f. .Author's pri\ate collec- 

 tion. Compare with Figure 18. 



Fig. 18. Posterior aspect of the distal extremit\' of the left tibio-tarsus of Bubo 

 leptosleus Marsh (Type). Compare with Figure 17, and see description in the text. 



Fig. 19. Ventral view of the anterior portion of the sternum of Meleagris 

 richmondi, sp. nov. (T^pe). 



Fig. 20. Anterior view of the distal extremity of Pahropkasianiis mdeagroidcs 

 Shuf. Imperfect. 



Fig. 21. Distal extremity of the left tibio-tarsus of a specimen of Gnis Jiaydcni 

 Marsh. Adult and somewhat imperfect. Yale Coll. Cat. No. 860. Has been 

 compared by the present writer with the type in Coll. Acad. Nat. Sci. of Phila. 



80 



