FAicoxiD,^;. 23 



The following specimen may indicate cm allied form. 



A. 160. The termiual phalangeal of the third or fourth digit of the 

 pes of an Accipitrine bird ; from the Phosphorites of Caylux 

 (Tarn-et-Garonne), France. Purchased, 1S85. 



Genus HALIAETUS, Savigny \ 



The tibio-tarsus is distinguished from that of Aquila by the 

 slightly less prominence of the ciiemial crest, the great obliquity of 

 the extensor liridge, by the inner condyle being much larger than 

 the outer, and by the superior surface of the former being bevelled 

 away, and its outer border sloping obliquely upwards and outwards. 



^altactusi pelagtcii^ (Pallas ^). 

 Syn. Aquila pelayica, Pallas ^. 



The largest existing Eagle. The tibio-tarsus is more slender and 

 less curved than in the European H. cdbicilla. 



Uah. N.E. Siberia, x^. China, Japan, Kamschatka, and probably 

 the American side of Behring Strait. 



41567. A left tibio-tarsus probably referable to this species ; from 

 the superficial deposits of "Walthamstow, Essex. Xoticed 

 by H. Woodward in the ' Gcol. Mag.' decade 1, vol. i, p. 387 

 (1869), This specimen, which has a length of 0,17-5, is 

 larger, more slender, and less curved than the correspond- 

 ing bone of H. alliciUa, and comes so close to that of the 

 one recent skeleton oi H. pelagicvs in the Museum, as to 

 leave little doubt that it belongs to the same or a closely 

 allied species. Purchased, 1869. 



I^altactus alOutlla (Linn.^). 

 S)Ti. Vultur cdbicilla, Linn.^ 



The type species. 

 Hcdj. Europe. 



A. 142. Fragment of breccia containing the crushed proximal half 



1 Syst. cl'Oiseaiix do I'Egypte, p. 8 (18] 0). 



^ Zoogr. Kosso-Asiat. vol. i. p. 343 (1811). — Aquila. 



' Log. cit. 



* Syst. Nat. ed. 12, vol. i. p. \-23 {l7m).~-FuItuT. 



' Loc. cii. 



