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This study used gross anatomy, light microscopy, and scanning electron microscopy, in addition to morphometric analysis, to investigate the anatomical characteristics of the oral cavity roof in <jats:italic>Pagrus pagrus<\/jats:italic> and <jats:italic>Boops boops<\/jats:italic>, which have different dietary habits. The oral cavity roof appeared U\u2010shaped and divided into the palate and upper pharyngeal regions. The upper lip of <jats:italic>P. pagrus<\/jats:italic> was broad, while <jats:italic>B. boops'<\/jats:italic>\u00a0upper lip was small and thin. Both species had a stratified squamous epithelium with an irregular shape and a folded surface. <jats:italic>P. pagrus<\/jats:italic> had a horseshoe\u2010shaped upper velum with a high middle part, and its surface resembled sea waves with obvious mucous\u2010secreting openings with cilia and many folds and grooves between them. <jats:italic>B. boops's<\/jats:italic> upper velum was thin and appeared as a triangle pouch with a pointed cranial apex. The palate in both species was narrow in the front and increased in width backward until it ended. The upper pharyngeal teeth in <jats:italic>P. pagrus<\/jats:italic> appeared as two patches, separated by a median longitudinal ridge and an anterior V\u2010shape separator. Meanwhile, in <jats:italic>B. boops<\/jats:italic>, they appeared as a ball patch on both sides and a separator ridge in the middle. Because <jats:italic>P. pagrus<\/jats:italic> fed on harder structures than <jats:italic>B. boops<\/jats:italic>, their feeding habits were reflected in the structure of the oral cavity roof. <jats:italic>P. pagrus<\/jats:italic>, a carnivorous species, had several rows of sharp upper jaw and upper pharyngeal teeth, thick spinous tubercles on oblique transverse ridges, and massive mucous glands. On the other hand, <jats:italic>B. boops<\/jats:italic>, an omnivorous species, had only one row of upper jaw teeth, a few upper pharyngeal teeth scattered on two oval patches, and thin filaments on the oblique transverse ridges.<\/jats:p>","DOI":"10.1002\/jez.2822","type":"journal-article","created":{"date-parts":[[2024,4,23]],"date-time":"2024-04-23T10:05:36Z","timestamp":1713866736000},"page":"783-797","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Macro\u2010 and micro\u2010morphological comparison of the detailed structure of the oral cavity roof in two different feeding habits marine fishes: <i>Pagrus pagrus<\/i> and <i>Boops boops<\/i>"],"prefix":"10.1002","volume":"341","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6236-4801","authenticated-orcid":false,"given":"Mohamed A. 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