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Show 410 MESSRS. SCLATER AND SALVIN ON [Apr. 4, Querquedula discors, Dafila acuta, Mareca americana, Spatula clypeata, Aix sponsa, Fuligula marila, affinis, • collaris, Fuligula americana, valisneria, Clangula glaucion, albeola, QHdemia perspicillata, Erismatura rubida, Mergus cucullatus. Deducting these 23, there remain 39 in the purely Neotropical list, which may be divided as follows. In the first place, the genera Chenalopex, Dendrocygna, Sarcidiornis, and Cairina are essentially tropicopolitan. W e may therefore associate the birds of these genera together as an intertropical division containing eight species, namely Chenalopex jubata, Dendrocygna fulva, • autumnalis, discolor, Dendrocygna arborea, viduata, Sarcidiornis melanonota, Cairina moschata. OD i IS a *5. melanoptera *9 rubidiceps ' *14. Dendrocyna fulva *19. Sarcidiornis carunculata... . *23. specularis *24, cristata Tierra del Fuego and Patagonia. Chili. . ... * *• * !• * *> * 1 * if * ' * * i * * 7 8 Argent. Kepubl. Paraguay. S "Rra.zil. S- * ... f # .. * * * 7 3 4 a i S A O CD * PQ PH * * * 5 2 2 c3 o s cs s «*! c * . * * 4 . . . . Venezuela and *- * Trinidad. * * * * # * 3 5 S3 H a a o o 0 3 * 1 r o - 3 O CO - 3 - • - i H A ho , CS ft T. ~r. 5 ... 0 0 (Jentrai America and Mexico. | Antilles. | N. America. * * * * * * * * * * * ... * * * ... * * * * * * * 7 8 7 |