On the Morphological Description of Tracheal and Esophageal Displacement and Its Phylogenetic Distribution in Avialae
Fig 2
Alligator mississippiensis and Crocodylus niloticus.
(A) ventral view of A. mississippiensis trachea. (B) radiograph of alligator trachea. (C) ventral view of the Nile crocodile’s trachea and esophageal course. Tra = trachea; Eso = esophagus; Tra loop = tracheal loop. Nile crocodile image courtesy of J. Reidenberg.