ventral fin

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Related to ventral fins: pectoral fin

ventral fin

n.
A fin, such as a pelvic fin or an anal fin, that is found on the ventral side of a fish.
References in periodicals archive ?
Sexual dimorphism: Males are smaller than females with proportionally longer pectoral, anal and ventral fins. In males, the first branched pectoral-fin ray is thickened and elongated, with a long finger-shaped lamina circularis at the base of the second pectoral-fin ray (Fig.
Diagnosis: Males with red longitudinal stripes between the rays of the caudal fin, yellow stripe near dorsal and ventral fin margin; females with brown spots between caudal fin rays.
Fin: ventral Fin. TABLE 4 Morph metric features of fish species caught in Anambra River, Nigeria N TL SL HL BD BG WG Papyrocranus afer 27 571 395 80 90 160 301 Alestes nurse 42 200 140 60 80 120 400 Macrolepidotus cuvier 33 481 401 90 130 180 700 Citharinus citharius 52 300 231 69 101 176 900 Labeo coubie 31 600 501 122 140 191 1001 Distichodus rostatus 28 480 411 96 110 171 1200 Clarias anguillaris 21 800 602 180 171 196 1160 Synodontis clarias 40 240 203 109 190 170 270 Schilbe mystus 26 280 210 80 140 130 240 Tilapia zillii 18 275 201 79 97 200 230 All measurements are millimeters (mm): TL: Total Length; SL: Standard Length; HL: Head Length; BD: Body Length; BG: Body Girth; BW: Body weight (mg).