. The structure and classification of birds . EiG. 82.—Skull of View. (AfterGaerod.) Fio. 83.—Skull or View. (After Garrod.) cut, ovally contoured nostril. It is not, however, always easyto distinguish so clearly as can be done between Ballus andG-rus. Thus Gtarrqd admits the schizorhiny of Furnarius 144 STRUCTUEE AND CLASSIFICATION OF BIRDS and some other Passerines, in which the bony opening ofthe nostrils, although, as he figures it, rounded off at itstermination, ends behind, or at least on a level with, theends of the nasal processes of the premaxillse. In th


. The structure and classification of birds . EiG. 82.—Skull of View. (AfterGaerod.) Fio. 83.—Skull or View. (After Garrod.) cut, ovally contoured nostril. It is not, however, always easyto distinguish so clearly as can be done between Ballus andG-rus. Thus Gtarrqd admits the schizorhiny of Furnarius 144 STRUCTUEE AND CLASSIFICATION OF BIRDS and some other Passerines, in which the bony opening ofthe nostrils, although, as he figures it, rounded off at itstermination, ends behind, or at least on a level with, theends of the nasal processes of the premaxillse. In the sameway an intermediate condition is oflEered by Thinocorus andGlareola, in which there is much the same kind of arrange-ment. But one of the most striking instances which havecome to my personal knowledge is that of Chunga. Itsnear ally Cariama is, as correctly stated by Gareod andothers, holorhinal, which in view of its relationship to thecranes is unfortunate. But in Chunga it is clear that theholorhiny is secondary, being produced


Size: 994px × 2514px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1898