THE FOSSIL AVIFAUNA OF THE 
425 
Fig. 18. 
Fig. 19. 
Fig. 20. 
Fig. 21. 
Fig. 22. 
Fig. 23. 
Fig. 24. 
Fig. 25. 
Fig. 26. 
Fig. 27. 
Fig. 28. 
Fig. 29. 
Fig. 30. 
Fig. 31. 
Fig. 32. 
Fig. 33. 
Fig. 34. 
Fig. 35. 
Fig. 36. 
Fig. 37. 
Fig. 38. 
Plate XVI. 
Inner aspect of the upper part of the right side of the osjurcula of Olor paloregunut. This 
piece, here correctly figured, is the same that did duty for the left side in Figure 
25. This fragment is iii the possession of Professor Cope. 
Inner aspect of the upper part of the right side of the os furciila of Anser condoni. This 
piece is the same that did duty for the left side in Figure 26. Dotted lines restore 
its apex as before (Fig. 26). Cope collection. 
Upper view of the bent, posteriorly projecting part of the mesial portion of the otfuretila of 
Olor buccinator (18,509 U. S. Kat. Mus.) Compare with Fig. 21. 
Upper view of the bent, posteriorly projecting part of the mesial portion of the osjureiila of 
Olor jjaloregonus. Imperfect part restored in dotted line from the opposite side or 
perfect portion of the fragment. This is the same specimen which figures in the 
lower part of Figure 25. 
Outer view of the left side of the os /urcw^a of Atuer albifrons (Spec. 18,610 Coll. U. S. 
Nat. Mus.) Presented for comparison with Figure 26. 
Posterior aspect of the lower mesial portion of the os furcuta of Anser albijrons. ^ From the 
same bone shown in Figure 22. Presented for comparison with Figure 27. 
Outer aspect of the left side of the os fureula of Olor buccinator (Spec. 18,509, Coll. U. S. 
Nat. Museum). 
Outer aspect of the left side of the os fureula of Olor paloregouus (^CoU. of Cojw). Imper- 
fect part restored in dotted line from the bone shown in I'igure 24. The external 
characters, as the pneumatic foramen, etc. were obtained from the inner nsiiect of 
this same fragment in order to present the same view of it a.s is shown for Olor 
buccinator in Figure 24. The real aspect of this part is given in Figure 18. 
Outer aspect of the left side of the os fureula uf A?iser condoni, (Coll, of Cojic).^ Im|>erfect 
part restored in dotted line from a specimen of 4n«er albifrons (Swc. 18,610 Coll. U. 
S. Nat. Mus.) The internal characters, as the pneumatic forunicn, etc., were 
obtained from the inner aspect of this same fragment in order to prcmil the sumo 
view of it as is shown for the specimens given in Figures 24, 25 and 22. The rwil 
aspect of this part is shown in Figure 19. 
Posterior aspect of the lower mesial portion of the os fureula of A user condoni. Same frag- 
ment as is shown in Figure 26. 
Plate XVII. 
Anterior view of the right tibio-tarsus of a subadult specimen of P/uenicopterus copci. Almut 
the distal two thirds. _ . n- i 
Anterior view of the left tibio-tarsus of an adult specimen of Phanicoptenu cnpei. Distal 
portion. Fragmentary. 
Anconal aspect of right ulna of Pedioemtes lucasi. 
Anterior aspect of the lower part of the shaft and distal trochleie of a right tarso-niPlntnrsiis 
ofArdea paloctndentalis. Upper part of the bone simply indicated in dotted lines, 
the restoration having been made by the assistance and use of correSiwmiing bones 
in the skeletons of several of the smaller United States Herons. 
Anconal aspect of a specimen of the left humerus of Fulira minor. ^ 
Superior aspect of the basal phalanx of hallux digit of the right pelvic limb of a specimen 
of Aquila pliogryps. Type: Cope collection. • • , i 
Palmar aspect of the right carpo-metacarpus of Palwotetrix gilli. Inij^rfect portion in d<>tt«l 
lines, and restored by the use of the corresponding bone as it occurs in nearly all 
Tetraonidw. . p ^ , < • 
Palmar aspect of the right carpo-metacarpus of a specimen of Centrocerrus wophMtanus. 
From a skeleton of a small female in the author’s collection. Introduced for com- 
parison with the type given in Figure 34, from the Cope collection. 
Anterior view of left tarso-metatarsus of Pedioccetes yianus. i 1 1 j-o- 
Palmar aspect of left carpo-metacarpus of Pediocates nanus : I robably a dittcrent 
individual. . t.,- i » j i. 
Anterior view of a left tarso-metatarsus of Phoenicopterus copei. Distal portion. Adult 
individual. (Type : Cope collection). 
