PLATE XV 



[x\ll Figures natural size. Reproductions of photographs made direct from the 

 specimens by the author] 



Fig. 123. Left coracoid, posterior aspect, of Sula atlaiilica, sp. nov. (extinct). 

 Fossil. Adult. (See description in text.) 



Fig. 124. Distal part (third?) of the right humerus of a fossil bird (indeter- 

 mined). Adult. (Extinct?) Yale University Coll., Cat. No. 940. From a species 

 about one-fifth smaller than a Night Heron (Xyrtkorax), to which, however, it 

 does not appear to be related. 



Figs. 125, 126. Shafts of fossil long bones {Graciilaviis. New gen. and sp- 

 Marsh). Birds? (See description in text.) 



Fig. 127. Anterior aspect of distal portion of a fossil left tarso-metatarsus of 

 a bird. Tj^pe of Graculavns Icnliis of Marsh. Cat. No. 1796, Yale University Coll- 

 (See description in text.) 



Fig. 128. Portion of a fossil bone (Bird; indetermined). (See description in 

 text.) Cat. No. 903, Yale University Coll. Adult. 



Fig. 129. Anterior aspect of the right tibio-tarsus of Limicolavis pluviaiiella, 

 sp. nov. (Type.) Adult; fossil. Oligocene; John Day? Coll. Peabody Museum. 

 Yale University. 



Fig. 130. Anterior view of the superior end of a fossil left coracoid of a bird 

 (extinct?). Adult; indetermined. I^elonged to some species about the size of a 

 Clapper Rail (L. Eocene?) 



Figs. 131-136. Various fossil bones representing Minerva antiqua Shuf. 

 Figure 131, anterior view of the distal end of left tibio-tarsus; Figure 132, basal 

 phalanx of the second digit, left foot, mesial aspect; Figure 133, basal Joint of 

 hallux; Figure 134, characteristic hallucial claw of the first digit or hind toe; distal 

 portion broken off, otherwise perfect; Figure 136, distal end of a left femur with a 

 perfect interna condyle and an imperfect external one. 



Fig. 137. Anconal aspect of the distal portion of a right hiunerus of a bird 

 (adult, fossil, indetermined). Size of a Coilrocercus itropliasiaiiits. 



Fig. 138. Anconal aspect of the proximal part of the right carpo-metacarpus 

 of Phalacrocorax mediterraneus, sp. nov. (extinct, fossil, adult). 



Figs. 139-143. Various fossil bones of Falco falcoiiella, sp. now (extinct, 

 adult). Eocene. Figure 139, anconal aspect of the distal end of the left humerus; 

 Figure 140, ungual phalanx of one of the toes; Figure 141. anterior aspect of the 

 superior extremity of the left coracoid; Figure 142, pedal phalanx of a toe; Figure 

 143, condyle of some long bone. 



Figs. 144-147. Figure 144, anterior aspect of the distal end of the right tibio- 

 tarsus of Gr».v wor^///, sp. nov. (e.xtinct, fossil, adult). Bridger; P^ocene. Figures 

 145-147, fragments (indetermined) which accompanied Figure 144. 



Fig. 148. Hallucial fossil claw of Minerva antiqua Shuf. 



Fig. 149. Fossil ungual phalanx of a specimen of Minerva antiqua Shuf. 

 Nearly perfect (adult). 



106 



