. A dictionary of birds . well as in Columhse and Gallinx—but the last casesare clearly only analogous. II. Syrinx bronchialis, in Avhich outer tympaniform membranesexist between two or more successive bronchial semirings, Avhile an SYRINX 941 inner tympaniform membrane may also be present. In typicalcases the Trachea has no sounding membranes, and to such belongSteatornis, various Caprimulgi and Cucidi—notably Batrachostomus,Podargus, CrotojjJiaga, Piaya and Guira; but there are other membersof these groups, as jEgotheles, Nydidromus, Cticidus and Centropus,in addition to certain Striges, as


. A dictionary of birds . well as in Columhse and Gallinx—but the last casesare clearly only analogous. II. Syrinx bronchialis, in Avhich outer tympaniform membranesexist between two or more successive bronchial semirings, Avhile an SYRINX 941 inner tympaniform membrane may also be present. In typicalcases the Trachea has no sounding membranes, and to such belongSteatornis, various Caprimulgi and Cucidi—notably Batrachostomus,Podargus, CrotojjJiaga, Piaya and Guira; but there are other membersof these groups, as jEgotheles, Nydidromus, Cticidus and Centropus,in addition to certain Striges, as Asio accipitrinus, which shew stagesintermediate between the typical Bronchial and Tracheo-bronchialSyrinx, in so far as the lower part of the Trachea has incompleterings only, with no pessulus, and is, as in Centrojms, split into a rightand left half, so that it assumes the Bronchial character. III. Syrinx tracheo-bronchicdis, which may be regarded as thenormal form, the other two being modifications of it, yet it is. ^


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Keywords: ., bookauthorlyde, bookcentury1800, bookdecade1890, booksubjectbirds