Elasmobranchii (rays and sharks)
Great white shark, Carcharodon carcharias
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Subclass: Elasmobranchii Bonaparte, 1838
Superorders
Batoidea (rays and skates) Selachimorpha (sharks) According to caption, originally from http://www. ... Binomial name Carcharodon carcharias (Linnaeus, 1758) Range (in blue) The great white shark, Carcharodon carcharias, also known as white pointer, white shark, or white death, is an exceptionally large lamniforme shark found in coastal surface waters in all major oceans. ... Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Animalia redirects here. ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... This article does not cite its references or sources. ... Charles Lucien Jules Laurent Bonaparte (May 24, 1803 _ July 29, 1857) was a French naturalist and ornithologist. ... Orders Rajiformes - common rays and skates Pristiformes - sawfishes Torpediniformes - electric rays See text for families. ... Orders see text Sharks are a group (superorder Selachimorpha) of fish, with a full cartilaginous skeleton, a streamlined body plan with between 5 and 7 gill slits along the sides (most often) or side of the head (the first modified slit is behind the eye and called a spiracle), dermal...

Elasmobranchii is the subclass of cartilaginous fish that includes skates, rays (batoidea) and sharks (selachii). In biology, a subclass is one level below a class. ... Orders see text The Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nostrils, scales, two-chambered hearts, and skeletons made of cartilage. ... Look up skates in Wiktionary, the free dictionary. ... Orders Rajiformes - common rays and skates Pristiformes - sawfishes Torpediniformes - electric rays See text for families. ... Orders Carcharhiniformes Heterodontiformes Hexanchiformes Lamniformes Orectolobiformes Pristiophoriformes Squaliformes Squatiniformes Symmoriida(extinct) Shark (superorder Selachimorpha) are fish with a full cartilaginous skeleton[1] and a streamlined body. ...

Summary

Elasmobranchii is one of the two subclasses of cartilaginous fishes in the class Chondrichthyes, the other being Holocephali (chimaeras). For features that distinguish Elasmobranchii from Holocephali, see those articles.This classification includes great white sharks and the extinct megalodon. This article does not cite its references or sources. ... Families See text for families, genera and species. ...

Members of the elasmobranchii subclass have no swim bladders, five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins, and small placoid scales. The teeth are in several series; the upper jaw is not fused to the cranium, and the lower jaw is articulated with the upper. The inner margin of each pelvic fin in the male fish is grooved to constitute a clasper for the transmission of sperm. These fishes are widely distributed in tropical and temperate waters.^[1] The gas bladder of a Rudd The gas bladder (also fish maw, less accurately swim bladder or air bladder) is an internal organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current water depth, ascend, or descend without having to... gills of a Smooth Newt Gills inside of a tuna head In aquatic organisms, gills are a respiratory organ for the extraction of oxygen from water and for the excretion of carbon dioxide. ... Dorsal Fin of the Orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins and porpoises. ... Different types of sperm cells: A) spermatozoon (motile), B) spermatium (non-motile), C) fertilization tube with sperm nuclei For other uses, see Sperm (disambiguation). ... The tropics are the geographic region of the Earth centered on the equator and limited in latitude by the two tropics: the Tropic of Cancer in the north and the Tropic of Capricorn in the southern hemisphere. ... In geography, temperate latitudes of the globe lie between the tropics and the polar circles. ...

References

1. ^ Schroeder, Henry B.; Bigelow, William C. (1948). Fishes of the Western North Atlantic. Sears Foundation for Marine Research, Yale University, pp. 64-65. ISBN B000J0D9X6.