PELECANID^. 



37 



Family PELECANID^. 



Large and long-winged birds, with the beak enormously produced 

 and depressed. 



The tarso-metatarsus is stout, with a very large pneumatic foramen 

 at the proximal extremity of the anterior surface, and smaller lateral 

 foramina ; talon very large, with the gastrocnemial ridge enormously 

 developed, and closed channels for the passage of the flexor tendons ; 

 anterior surface slightly channelled. 



The tibio-tarsus is nearly cylindrical, with a decided inflection of 

 the distal extremity. 



The femur is characterized by the depth of the popliteal depression. 



The humerus is very long, with the bicipital surface inflated, and 

 terminated inferiorly by a distinct groove, which is absolutely charac- 

 teristic of the genus; the delto-poctoral crest is slightly developed. 



The ulna is slightly shorter than the humerus, with a pneumatic 

 foramen at the superior extremity of the surface for the insertion of 

 the brachialis anticus. 



Genus PELECANUS, Linn.^ 

 Includes all the members of the family. 



Pelecanus cautleyi, Davies -. 



Founded upon tlie distal part of an ulna differing from that of other 

 species witli which it has been compared in the form of the palmar 

 trochlear depression, which is unusually deep. This and the other 

 bones referred to the species indicate a bird of somewhat smaller 

 dimensions than the existing P. mitmtus. 



Hah. India. 



The folhivhuj specimens were oltcdned from the Loiuer Pliocene of 

 the SiivaWc Hills, ami form jMrt of the Cautley Collection. Pre- 

 sented, 1842, 



39740. The distal extremity of the left ulna. The type, described 

 (%•) l>y Davies in the ' Geol. Mag.' decad. ii. vol. vii. p. 2G, and 

 figured by the present writer in the ' PalaDontologia Indica ' 

 (Mem. Geol. Suit. India), ser. 10, vol. iii. pi. xiv. figs 11 

 11 a). 



' Syst. Nat. ed. 12, vol. i. p. 21.5 (17GG). 

 - Geol. Mag. decad. ii. vol. vii. p. 26 (1880). 



