- English Name : Sicklefin lemon shark
- Local Name : Femunu miyaru
- Size : Max. 7.4 m or more
- Family : CARCHARHINIDAE
- Order : Carcharhiniformes
- Distinctive Characters: Body large and fairly snout. Short, blunt snout. Foreparts stout, but hindparts more slender. Low keel on either side of caudal peduncle. Distinctive teeth (see illustration). Upper labial furrows very long extending to front of eyes. Spiracle present.
- Colour: Grey. Dark spots and stripes on sides, which fade with growth.
- Habitat and Biology: Occurs in inshore, as well as offshore waters, near the surface and bottom. A voracious indiscriminate predator feeding on all kinds of fish, marine mammals, turtles, sea birds, sea snakes, cephalopods, molluscs and crustaceans, as well as carrion and garbage. Ovoviviparous; size of litters very large, 10 to 82. This species may mature at between 4 to 6 years old.
- Distribution: Circumtropical.
- Remarks: Galeocerdo cuvier is one of the most dangerous sharks. It attacks divers, swimmers and even
boats. Certainly the tiger shark has the worst reputation as a man-eater amongst tropical sharks.