_Anas theodori_ Newton & Gadow, Trans. Zool. Soc. XIII, p. 291, pl.
XXXIV, figs 11-17 (1893--Mauritius).
Messrs. Newton and Gadow founded this species on a fragment of a sternum, a
pair of coracoids, eight humeri, and a pair of tarso-metatarsi. These are
referable to a duck of larger size than _Nettion bernieri_, and somewhat
intermediate between _N. punctata_ and _Anas melleri_.
The sternum differs from that of _A. melleri_ by the lesser height of the
keel and by the shape and direction of the anterior margin of the latter.
The coracoid is longer and larger than in _N. bernieri_, but is much
shorter than in _A. melleri_, though agreeing with that of the latter in
shape, and by the plain almost ridgeless ventral surface of the shaft. The
seven humeri vary in length from 70-78 mm., and agree in size with those of
_N. punctata_, thus proving our species to be smaller than _A. melleri_.
The two tarso-metatarsi are in poor condition; the right one measuring 42
mm. in length, thus indicating that _A. theodori_ was a bird with a shorter
foot than _A. melleri_.
Habitat: Mauritius.
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