. A monograph on the anatidae, or duck tribe. hs with athird part naked. Dill with the sides parallel. Nostrils oval, placed near the culmen at the blunt, at tbe point with an appendage, the sides furnished with one rank of long and flexiblebristles, above these bristles in the middle of the sides furnished with six spines, and in the middleabove with a double rank of short bristles. Anat. Char. Trachea with the tube of equal size. Inferior Larynx with one osseousbulb on the side and extending anteriorly. Anas. Linn. BoSCBAS. Swainson. Type. Anas Bosckas. ANATIN/E.] 46 We have here
. A monograph on the anatidae, or duck tribe. hs with athird part naked. Dill with the sides parallel. Nostrils oval, placed near the culmen at the blunt, at tbe point with an appendage, the sides furnished with one rank of long and flexiblebristles, above these bristles in the middle of the sides furnished with six spines, and in the middleabove with a double rank of short bristles. Anat. Char. Trachea with the tube of equal size. Inferior Larynx with one osseousbulb on the side and extending anteriorly. Anas. Linn. BoSCBAS. Swainson. Type. Anas Bosckas. ANATIN/E.] 46 We have here retained the old Linnean name for this genus, instead of that of Boschasproposed by Mr. Swainson. The proportions of the skeleton are:—The depth of the keel to thelength of the sternum as 1 to 5. Breadth of the pelvis to its length as 1 to If. Length of femurto that of tibia as 1 to 1J. Depth of cranium to its length as 1 to 3. Affinity. In size and the form of the tongue this genus approaches nearest to the last ofany among the 47 [
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Keywords: ., bookauthorlearedwa, bookcentury1800, bookdecade1830, bookyear1838
