2008. The upper jaw teeth are narrow and triangular with the first three nearly symmetrical and erect. 2006b). This species is also known by the following name(s): Great Hammerhead, Squat-headed Hammerhead Shark. English:           scalloped hammerhead, bronze hammerhead shark, hammerhead, hammerhead shark, kidney-headed shark, scalloped hammerhead shark, and southern hammerhead shark "I caught a hammerhead shark! Sharks are a large group of animals belonging to the class of cartilaginous fishes. The IUCN is a global union of states, governmental agencies, and non-governmental organizations in a partnership that assesses the conservation status of species. Description & Behavior. Lower jaw teeth are more erect and slender than upper. and Burgess, G. 2007. PREDATORS OF THE DEEP Genus name, Sphyrna, is Greek for “hammer.” There are many theories as to the purpose of the hammer shaped head of this genus. Chen, G.C.T., Leu, T.C., Joung, S.J. 1991. The remainder of the shark is used for vitamins and fishmeal. Mar. ; Pérez-Jimenez, J.C.; Simpfendorfer, C.; Smith, W.D. All organisms have scientific names, a name that is unique for each species. Common prey: small schooling fish such as sardines, conger eels, many reef fish species, squid, octopus, crustaceans as well as smaller elasmobranchs such as blacktip reef sharks, angelsharks and stingrays. This name was later changed to Sphyrna zygaena (Linnaeus 1758) which is currently the valid name. Suntanning in hammerhead sharks. Relatively few attacks have been attributed to this species due to its common occurrence in temperate rather than tropical waters where humans are more likely to enter the water. As you might guess by its name, the great hammerhead (Sphyrna mokarran) … The name Sphyrna translates from Greek to the English language “hammer”, referring to the hammer-shaped head of this species. Scientific & Common Names. The families Carcharhinidae (excluding. The low second dorsal fin is shorter than the anal fin, with the free rear tip not extending to the precaudal pit. External leeches (Stilarobdella macrotheca) and copepods (Alebion carchariae, A. elegans, Nesippus crypturus, Kroyerina scotterum) often parasitize scalloped hammerheads. The scalloped hammerhead is distinguished from other hammerheads by an indentation located in the center of its laterally expanded head. On occasion, the smooth hammerhead has been known to enter freshwater habitats including the Indian River along the coast of Florida (US). The reason behind these differing population growth rates is still under debate. Ecology of the scalloped hammerhead shark. In: C.M. An international team of scientists surprised the world by reporting that female hammerhead sharks can reproduce without males through parthenogenesis, or "virgin birth". Fines wrote: "I just have a quick question for someone who may have more literary resources available than myself. 178–179. Anislado-Tolentino, V. and Robinson-Mendoza, C. 2001. The origin of this first dorsal is located over the pectoral fin insertions. Branstetter, S. 1987. Stevens, J.D. Bonnethead Shark (Sphyrna Tiburo) All ready for the Easter parade we got the bonnethead shark. This name was later changed to Sphyrna zygaena (Linnaeus 1758) which is currently the valid name. Sphyrnidae Gill, 1872 – requins-marteaux, tiburones martillo, bonnethead sharks, hammerhead sharks, scoophead sharks : Genus: Sphyrna Rafinesque, 1810 – bonnethead sharks, hammerhead ... Common and Scientific Names of Fishes from the United States and Canada, Fifth Edition : Journal/Book Name, Vol.