. The birds of America : from drawings made in the United States and their territories . palate flat, with two longitudinalridges; the posterior aperture of the nares linear and 9 twelfths long, theanterior or external aperture entirely obliterated. The lower mandible hasa distinct oblique joint at about a third of its length, enabling it to beexpanded to the extent of an inch and a half. The pouch, which is small, isconstructed in the same manner as that of the Pelicans and Cormorants; its AMERICAN ANHINGA. 455 muscular fibres running from the lower edge of the mandible downwards andbackwards
. The birds of America : from drawings made in the United States and their territories . palate flat, with two longitudinalridges; the posterior aperture of the nares linear and 9 twelfths long, theanterior or external aperture entirely obliterated. The lower mandible hasa distinct oblique joint at about a third of its length, enabling it to beexpanded to the extent of an inch and a half. The pouch, which is small, isconstructed in the same manner as that of the Pelicans and Cormorants; its AMERICAN ANHINGA. 455 muscular fibres running from the lower edge of the mandible downwards andbackwards, and a slender muscle passing from the anterior part of the hyoidbone to the junction of the crura of the mandible. The tongue is reduced toa mere oblong knob,. l|- twelfths long, and -^ twelfth in height. Theaperture of the glottis is 3 twelfths long, with two roundish thin edged flapsbehind, destitute of papillae. There is a small bone appended to the occipitalridge, i inch in length, as in the Cormorants. The oesophagus a b, is 17 inches long, exceedingly delicate and dilatable,.
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Keywords: ., bookcentury1800, bookdecade1840, bookidbirdsofa, booksubjectbirds
