. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 100 C. Brown & D. Ward. Fig. 3 (left): Longi tudinal section of the syrinx of the Crowned Plover Vanellus coronatus. Brl = first bronchial semiring; Br = bronchial semiring; ITM = internal tympaniform mem- brane; M = marrow cavity; SLM = semilunar membrane; TLM = tracheolaterahs muscle; T = tracheal ring; t = ridge or tail on posterior and anterior edges of the laterally-flattened tracheal rings. Shading as for Fig. 1. Fig. 4 (right): Longitudinal section of the
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 100 C. Brown & D. Ward. Fig. 3 (left): Longi tudinal section of the syrinx of the Crowned Plover Vanellus coronatus. Brl = first bronchial semiring; Br = bronchial semiring; ITM = internal tympaniform mem- brane; M = marrow cavity; SLM = semilunar membrane; TLM = tracheolaterahs muscle; T = tracheal ring; t = ridge or tail on posterior and anterior edges of the laterally-flattened tracheal rings. Shading as for Fig. 1. Fig. 4 (right): Longitudinal section of the syrinx of the Blackwinged Plover Vanellus melanop- terus. Br = bronchial semiring; ITM = internal tympaniform membrane; M = marrow cavity; P = pessulus; SLM = semilunar membrane; Tr = tracheal ring; t = ridge or tail on posterior and anterior edges of the laterally-flattened tracheal rings. Shading as for Fig. 1. ficulty experienced in sectioning (owing to the large size and high degree of ossifica- tion). Tringa glareola (Scolopacidae) had a similar septum and pessulus (Fig. 9) to those of the specimens from the above three families (Burhinidae, Laridae and Pteroclididae), with three cartilaginous pieces making up the pessulus. Among the Scolopacidae, there appeared to be considerable variation in pessulus Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut
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