Species: Negaprion brevirostris, Lemon shark

Negaprion brevirostris (Poey, 1868)

Lemon shark

Body stout; head broad and flat with broad round to bluntly angular snout; eyes round, small, with lower eyelid; no spiracle; lip furrows at corners of mouth; mouth arched, ends well past eye; upper and lower front teeth with a single narrowly triangular straight point, mainly smooth, large fish may have serrations on bases of upper teeth, teeth straight at front, oblique at sides; five gill slits, last two over pectoral; two dorsal fins, first with origin just behind pectoral, second dorsal 80-100% size of first, origin slightly before anal origin; no ridge between dorsals; pectorals broad; anal fin large, a little smaller than second dorsal, with strongly notched rear margin; dorsals, anal, pelvic and pectoral fins with concave rear borders;  pit on top of tail base is longitudinal, straight; tail fin strongly asymmetrical, lower lobe of tail well developed, upper lobe with undulating ridge along its top edge, and a notch under its tip, pits at its base.