According to R. Aidan Martin (here:- http://www.elasmo-research.org/education/topics/r_smallest_shark.htm)... "...the smallest known extant shark species appears to be Etmopterus perryi, males of which mature at 16 to 17.5 cm TL* and gravid females have been found at 19 to 20 cm TL (Springer & Burgess 1985). One 19-cm TL specimen of E. perryi was found to contain three 6-cm embryos, each bearing external gill filaments. In comparison, the smallest mature male E. hillianus examined by Schofield & Burgess (1997) was 20 cm TL. Until the discovery of E. perryi, the smallest living shark was widely considered to be Squaliolus laticaudus, males of which mature at about 15 cm TL and females at about 17 to 20 cm TL (Compagno 1984). This and other tiny squaloids are closely rivaled by the carcharhinoid Eridacnis radcliffei, males of which mature by 18 to 19 cm TL, females possibly mature at 15 to 16 cm TL. Etmopterus perryi has the common name Dwarf Lanternfish.
Etmopterus hillianus has the common name Carribean Lanternfish.
Squaliolus laticaudus has the common name Spined Pigmy Shark.
Eridacnis radcliffei has the common name Pygmy Ribbontail Catshark. * I assume 'TL' indicates the total length but cannot confirm this.
whale shark
From smallest to biggest: Herring Piranha Salmon Shark
No, the smallest shark is actually the dwarf lanternshark, which grows to be about 7-8 inches long. The cookiecutter shark, while small in comparison to other sharks, can reach lengths of about 16-22 inches.
lemon shark
fish
3000 pounds
the shark fish
Etmopterus hillianus
the worlds biggest is the whale shark and the smallest is the kandiru
Only 1.2 cm.
24m (LARGEST) 9m (smallest)
the african morepork shark