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.
CAMPTOLAIMUS LABRADORIA (GM.)
(Plate [36].)
Anas labradoria Gmelin, Syst. Nat. I, 2, p. 537 (1788—"Habitat gregaria in America, boreali." Ex Pennant and Latham.)
Anas labradora Latham, Ind. Orn. II, p. 859 (1790).
Rhynchaspis labradora Stephens, in Shaw's Gen. Zool. XII, 2, p. 121 (1824).
Fuligula labradora Bonaparte, Ann. Lyceum N.Y. II, p. 391 (1826).
Somateria labradora Boie, Isis 1828, p. 329.
Kamptorhynchus labradorus Eyton, Mon. Anat. p. 151 (1838).
Fuligula grisea Leib, Journ. Acad. Sc. Philad. VIII, p. 170 (1840—young bird).
Camptolaimus labradorus Gray, List. Gen. B. ed. 2, p. 95 (1841); Dutcher, Auk. 1891, p. 201, pl. II; 1894, pp. 4-12; Hartl. Abh. naturw. Ver. Bremen XVI, p. 23 (1895).
Camptolaemus labradorius Baird, B.N. Amer. p. 803 (1858); Baird, Brewer and Ridgway, Water—B. N. Amer. II, p. 63 (1884); Milne-Edw. and Oustalet, Centen. Mus. d'Hist. Nat., Notice Ois. éteint. p. 51, pl. IV (1893); Salvadori, Cat. B. Brit. Mus. XXVII, p. 416 (1895).
The adult male and a young male, both in my museum, are represented on plate [36], but the young bird became too rufous, through the colour type reproduction, and should be somewhat more mouse-gray. Though first technically named by Gmelin in 1788, this duck was first described in 1785 by Pennant, in the Arctic Zoology II, p. 559, as follows:—