Fig. 1
From: Surface morphology of the oral cavity of redbelly tilapia, Coptodon zillii (Gervais, 1848)
Macrograph shows the gross morphological features of the oral cavity of Tilapia zillii. Views (a & b) show its terminal mouth opening. View (c) shows the roof of the oral cavity. View (d) shows the floor of the oral cavity. g-gills, LCT- lower caudal teeth, LL- lower lip, LRT- lower rostral teeth, LV- lower valve, OP-gill operculum, Pa- palate, T- tongue, UCT- upper caudal teeth, UL- upper lip, URT- upper rostral teeth, UV- upper valve