both jaws: teeth wide, serrated, strong notch inside
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Galeocerdo cuvier (Peron & Lesueur in Lesueur, 1822)
Tiger shark
Head, and body stout but becoming very slender towards tail; snout very short, blunt and slightly rounded (its length 0.7-1.1 of distance between nostrils); long groove over top of mouth to under eye; spiracle a narrow slit behind large, round eye; mouth large, wide; characteristic cockscomb teeth (serrated, front edge convex, oblique tip with a deep notch on lower rear side); strong ridge on back between dorsal fins; origin of dorsal fin over posterior corner of pectoral fin; first dorsal fin not very large (height 7.5-9.3% of TL) tip pointed, rear edge concave; origin of second dorsal fin distinctly in front of anal fin origin; a low keel along each side of the narrow tail base; tail strongly asymmetric, with sharp pointed tip, large pointed lower lobe.
Adults grey with vertical bars on upper half of sides (sometimes faint or absent); young with large dark spots, some coalescing to form bars.
Size: attains > 550 cm (1 record to 740 cm).
Habitat: coastal pelagic, often in turbid areas, and estuaries, but also on reefs; retires to deeper water during the day, and feeds on shallow reefs at night.
