. A monograph on the anatidae, or duck tribe. qual. The inferior Larynx with one compressedbulb, partly osseous, partly membrinaceous, extending on the side and behind. Anas. Linn. Carina. Ft em. Type. Carina moschata. ANATIN .!?..] IS The proportions of the skeleton are:—Depth of the keel to the length of the sternum as 1 to5|. Breadth of the pelvis to its length as 1 to 1±. Length of femur to that of tibia as 1 to |.Depth of the cranium to its length as 1 to 2|. The keel of the sternum produced in foramina large. Affinities. To some of the genera in the next sub-family this g
. A monograph on the anatidae, or duck tribe. qual. The inferior Larynx with one compressedbulb, partly osseous, partly membrinaceous, extending on the side and behind. Anas. Linn. Carina. Ft em. Type. Carina moschata. ANATIN .!?..] IS The proportions of the skeleton are:—Depth of the keel to the length of the sternum as 1 to5|. Breadth of the pelvis to its length as 1 to 1±. Length of femur to that of tibia as 1 to |.Depth of the cranium to its length as 1 to 2|. The keel of the sternum produced in foramina large. Affinities. To some of the genera in the next sub-family this genus presents an affinity inthe form of the hind toe, which, though not strictly lohated, is thickened on its lower side. 1 hetrachea presents considerable affinity to both the sub-family we have placed it in, and also to ihcfollowing. The bulb at the inferior larynx much more osseous on its external aspect than amongthe Fuligulina, and less so than among the Anatince: it is also laterally much compressed, as inthe following Si » *?
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Keywords: ., bookauthorlearedwa, bookcentury1800, bookdecade1830, bookyear1838
