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Particularities of the bucco-pharyngeal apparatus in Zenarchopterus kampeni (Pisces: Hemiramphida) and their probable significance in feeding Vandewalle, P.; Lambert, V.; Parmentier, E. (2002). Particularities of the bucco-pharyngeal apparatus in Zenarchopterus kampeni (Pisces: Hemiramphida) and their probable significance in feeding. Belg. J. Zool. 132(2): 125-132 In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276; e-ISSN 2295-0451, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 237877 [ download pdf ]

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Trefwoorden

Biology > Zoology > Vertebrate zoology > Osteology Hemiramphidae Gill, 1859 [WoRMS]; Pisces [WoRMS]; Zenarchopterus kampeni Marien/Kust

Author keywords

Pisces; Hemiramphidae; cephalic morphology; osteology; myology

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Auteurs		Top
Vandewalle, P., meer Lambert, V. Parmentier, E., meer

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Abstract

The present study shows several new anatomical particularities of the buccal and pharyngeal parts of the halfbeak Zenarchopterus kampeni. The upper buccal jaw consists of premaxillaries and maxillaries tightly joined by ligaments. A 10° lowering of the mandible leads to a 30° elevation of the upper jaw. The adductor mandibulae is reduced to bundles A²and A omega. As in the Labridae, the lower pharyngeal jaw articulates with the scapular girdle. The upper pharyngeal jaw consists of distinct second pharyngobranchials followed by the third pharyngobranchials fused into a powerful posterior component. This part fits into and slides along a longitudinal ventral gutter of the neuroranium, thanks not only to the dorsal retractor muscles but also to specific retractors of the second pharyngobranchials. The power and dentition of the pharyngeal parts contrasts with the fragility of the buccal elements.

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