121 



Subfamily Fuligulin^. 



Genus FULIGULA, Stephens '. 



The humerus differs from that of Anas hy the lesser development 

 of the internal proximal ridge and the smaller bicipital surface, in 

 consequence of which the bone has a more slender appearance ; as 

 well as by the deeper bicipital groove and subtrochanteric fossa. 

 The olecranal fossa is often well defined. The tarso-metatarsus is 

 shorter, and distinguished by the great development of the antero- 

 external ridge, which forms a distinct crest ; by the external tibial 

 cavity being much less deep than the internal one ; and by the 

 internal trochlea being directed more posteriorly. The whole bone 

 is relatively very stout. The tibio-tarsus (as in some of the allied 

 genera) is distinguished from that of Anas by the flattening of the 

 proximal portion of the anterior surface, the inner border of which 

 forms a sharp crest-like ridge ; the antei-ior intercondylar gorge is 

 also much wider ^. 



Jult'gula ftrina (Linn.^). 

 Syn. Anasferina, Linn.* 



Of comparatively large size, the length of the tibio-tarsus being 

 0,080. 



Hah. Europe. 



17686. Several imperfect associated bones belonging to this or an 

 allied species ; from the Forest-bed (?) of Ostend, Norfolk. 

 The more important specimens comprise an imperfect pos- 

 terior cervical vertebra, the proximal half of the left ulna, 

 part of the right femur, and the right tibio-tarsus, wanting 

 the head. The latter bone, which exhibits the characteristic 

 flattening of the upper part of the anterior surface, accords 

 very closely with the tibia of this species figured by Milne- 

 Edwards in his ' Oiseaux Eossiles de la France,' pi. xiv. 

 figs. 9-12. Green Collection. Purchased, 1843. 



' In Shaw's General Zoology, vol. xii. pt. 2, p. 187 (1824). 

 ^ In Dajlla, among the Anatince, the tibia is somewhat flattened, althouch 

 less markedly so, but the intercondylar gorge is less wide than in the Fuliyulinee. 

 = Syst. Nat. ed. 12, vol. i. p. 203 {\im).~Anas. 

 * Loc. cit. 



