. A monograph on the anatidae, or duck tribe. - ... I ? 77 [MERGANlNjB. Mr. Stephens, in vol. XII. p. 156, of Shaws Zoology, divides this genus, separating from itthe Smew (Mergus albellusj, and placing the other Mergansers under the genus Merganser, depth of the keel to the length of the sternum in this genus is as 1 to 5. Breadth of tinpelvis to its length as 1 to 2L Length of the cranium to its depth as 1 to 3\. Length of thefemur to the length of the tibia as 1 to If. We have spoken hefore of the affinities of this genus under the head of the SYNOPSIS SPECIER


. A monograph on the anatidae, or duck tribe. - ... I ? 77 [MERGANlNjB. Mr. Stephens, in vol. XII. p. 156, of Shaws Zoology, divides this genus, separating from itthe Smew (Mergus albellusj, and placing the other Mergansers under the genus Merganser, depth of the keel to the length of the sternum in this genus is as 1 to 5. Breadth of tinpelvis to its length as 1 to 2L Length of the cranium to its depth as 1 to 3\. Length of thefemur to the length of the tibia as 1 to If. We have spoken hefore of the affinities of this genus under the head of the SYNOPSIS SEM1PALMATUS. Cho.—Capite colloque nigro, dorso superiore alba SEMI PALM ATED with the head and neck hlack, the upper part of the back white. FT. IN. IN. Length 3 4 Tarsi 4 Bill 4 Middle toe \h Cho. : with the upper part of the hack, rump, and below, with the exception of the tibiae, white ;the remainder and the tibiae glossy hlack ; legs and hill orange ; the nail of the latter horn colour. Anas semipahnata Linn. Trans, iv. 103. Lath. I ml. Orn. App. 69. iS mipalmated Goose Lath. Chen. Syn. Sup. 2, 347. Anas melanoleuca Lath, huh Orn. App. 69. Trachea Lin. Trans, vol. xv. p. 383, pi, xiii, xiv. Inhabits New Holland, and utters a shrill whistling note. Mr. Yarrell, in vol. 15, p. 383, gives the following anatomical pecularities of this bird. Thetrachea was situated on the outside of the left pectoral muscle, under the skin, sufficiently raisedunder the wing that respiration would not be impeded when the bird rested with its breast on lliegro


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Keywords: ., bookauthorlearedwa, bookcentury1800, bookdecade1830, bookyear1838