. A dictionary of birds . ^. Raven. Lateral and Dorsal View of m. ir. .second, third and fourth bronchial rings ; Nos. 1-7, as on page 940. difficult to give such a diagnosis of it as will apply to all its modi-fications. The essential feature is that the proximal end of theinner tympaniform membrane is attached to the last pair of trachealrings. In the Oscines the four or five distal tracheal rings are solidlyfused into a little box which communicates with the Bronchi; thefirst and second bronchial semirings are closely attached to theTrachea; and the spaces between the secon
. A dictionary of birds . ^. Raven. Lateral and Dorsal View of m. ir. .second, third and fourth bronchial rings ; Nos. 1-7, as on page 940. difficult to give such a diagnosis of it as will apply to all its modi-fications. The essential feature is that the proximal end of theinner tympaniform membrane is attached to the last pair of trachealrings. In the Oscines the four or five distal tracheal rings are solidlyfused into a little box which communicates with the Bronchi; thefirst and second bronchial semirings are closely attached to theTrachea; and the spaces between the second and third and thirdand fourth semirings are generally closed by outer tympaniformmembranes. Similar arrangements exist in many other birds ; butthe chief outer membrane is frequently formed between the lasttracheal and the first bronchial ring, as in PJiea, Anseres, Sphenisci,Perdix, Cypsehis, Aluco flammeus and Eupicola. Most peculiarfeatures are shewn by Gallus and the Psiitaci; but in fact themodifications are very numerous
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1896
