ANATID^. 



109 



The condition of this specimen suggests that it has been 

 broken by the teeth of a carnivorous mammal. 



49322 b. Fragment of the inner half of the proximal extremity of 

 the left tarso-raetatarsus. This specimen, which indicates 

 a largo individual, is in the same condition as iu the 

 preceding one. 



Fig. 27. 



Cygnus falconeri. — Anterior aspect of tlie imperfect distal extremity of the 

 right tibio-tarsus ; from the Pleistocene of Malta. \. a, bridge over 

 groove for extensor tendons. 



49324 a. The proximal phalangeal of the third digit of the right 

 {F{(j.) pes. Figured by the writer in the 'Proc. Zool. Soc' 1890, 

 p. 410, fig. 3, B. The dimensions are— length 0,046, 

 antero-posterior diameter of proximal articular surface 

 0,017 ; the corresponding dimensions of the homologous 

 bone of C. oJor being 0,0G0 and 0,014. The unsymmetri- 

 cal form of the distal articular surface and the prominent 

 posterior ridge formed by the outer trochlea, which are so 

 characteristic of the family, are very distinctly shown. 

 This specimen is rather larger than the one figured by 

 Parker in the ' Trans. Zool. Soc' vol. vi. pi. x. figs. 20, 21. 



49324 f. A similar bone. 



49324 g. Another similar specimen. 



49324 i. The proximal phalangeal of the third digit of the left 

 pes of a smaller individual. 



