CATALOGUE OF BRITISH BIRDS. 
217 
c, London Market. Female. From Mr. J. Baker’s collection. 
d, €. Two tracheaB. England. 
/. Sternum. England. Presented by T. Ingall, Esq. 
g. Sternum. England. Presented by John Kay, Esq. 
8. AIX. 
Aix, Boie^ Isis (1828), p. 329. 
Dendronessa, Swains. Fauna Bor. Amer. ii. p. 497 (1831). 
Lampronessa, Wagl. Isis (1832), p. 282. 
1. Aix sponsa. The Summer Duck. 
Anas sponsa, Linn. S. N. i. p. 207 ; Keys. (J- Bl. Wirhelth. Eur. 
p. 84. 
Aix sponsa, Boie.^ Isis (1828), p. 329 ; Pr. Bonap. Geogr. Comp. 
List of B. p. 57 ; G. R. Gray., Gen. of B. iii. p. 614. 
Dendronessa sponsa, Swains. Faun. Bor. Amer. p. 446 ; Jenyns^ 
Man. B. Vert. An. p. 237. 
Lampronessa sponsa, Wagl. Isis (1832), p. 282. 
Summer Duck, Lath. Syn. iii. p. 546. 
PI. enl. 980, 981. 
(Dorking, Surrey). 
9. CHAULELASMUS. 
Chaulelasmus, G. R. Gray^ Pr. Bonap. Geogr. Comp. List of B. p. 
58 (1838). 
Chauliodus, Swains. Fauna Bor. Amer. p. 440 (1831). 
Ktinorhynchus, Eyton^ Monogr. Anatidce^ p. (1838). 
1. Chaulelasmus strepera. The Gadwall. 
Anas strepera, Linn. S. N. i. p. 200 ; Temm. Man. d’Orn. 1815, p. 
539 ; Leach., Syst, Cat. Mam. ^ B. B. M. p. 38 ; Boie., Isis 
(1822), p. 564 ; Steph. Gen. Zool. xii. p. 103 ; Flem. Brit. An. p. 
124; Brehm., Vdg. Deuts. p. 870; Jenyns., Man. B. Vert. An. p. 
231 ; Keys. ^ Bl. Wirhelth. Eur. p. 85 ; Naum. Vog. Deuts. 
(1842) xi. p. 659, t. 302. 
Anas cinerea, {Gmel.), Brehm, Vdg. Deuts. p. 871, 
Chauliodus strepera, Swains. Journ. Roy. Inst. ii. p. 19 ; Eyton, 
Cat. Brit. B. p. 60. 
Ktinorhynchus strepera, Eyton, Monogr. Anatidce, p. 137. 
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