. A monograph on the anatidae, or duck tribe. oes not lobated, armed with thick claws. Tarsithick and long. Bill moderate strong. Lamella scarcely elongated. Nostrils oval, large, placed in the basal half of the bill. Tail rounded. Anat. Char. Trachea with the tube of equal size, but a little expanded and again con-tracted towards the inferior larynx. The inferior Larynx with two osseous bulbs extending oneach side and before. Anas. Linn. Gmel. Lath. Tadorna. Leach. Flem. Steph. Typk. Tiidm-mi Bellonii. The depth of the keel to the length of the sternum is as 1 to 4. The breadth of the pelvist
. A monograph on the anatidae, or duck tribe. oes not lobated, armed with thick claws. Tarsithick and long. Bill moderate strong. Lamella scarcely elongated. Nostrils oval, large, placed in the basal half of the bill. Tail rounded. Anat. Char. Trachea with the tube of equal size, but a little expanded and again con-tracted towards the inferior larynx. The inferior Larynx with two osseous bulbs extending oneach side and before. Anas. Linn. Gmel. Lath. Tadorna. Leach. Flem. Steph. Typk. Tiidm-mi Bellonii. The depth of the keel to the length of the sternum is as 1 to 4. The breadth of the pelvisto its length as 1 to lg. The length of the sternum to that of the tibia as 1 to 2. The breadthof the cranium to its length as 1 to 2j!. ANATINjE.] 26 Affinities. The common Sheldrake approaches near in external character to the followinggenus. Nothing heing known of the anatomy of that genus, we cannot trace the affinity farther.—To the A » serin a it also approaches in its osteology and general hahir, particularly to the 27 [anatinzb.
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Keywords: ., bookauthorlearedwa, bookcentury1800, bookdecade1830, bookyear1838
