Elasmobranchii
Information about Elasmobranchii
| Elasmobranchii (rays and sharks) | ||||||||
|---|---|---|---|---|---|---|---|---|
) Great white shark, Carcharodon carcharias Great white shark, Carcharodon carcharias | ||||||||
| Scientific classification | ||||||||
| ||||||||
| Superorders | ||||||||
|
Batoidea (rays and skates) Selachimorpha (sharks) | ||||||||
Elasmobranchii is the subclass of cartilaginous fish that includes skates, rays (batoidea), and sharks (selachii).
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.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]
References
1. ^ Bigelow, Henry B.; Schroeder, William C. (1948). Fishes of the Western North Atlantic. Sears Foundation for Marine Research, Yale University, pp. 64-65. ISBN B000J0D9X6.
Carcharodon
Smith, 1838
Species: C. carcharias
Binomial name
Carcharodon carcharias
(Linnaeus, 1758)
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Smith, 1838
Species: C. carcharias
Binomial name
Carcharodon carcharias
(Linnaeus, 1758)
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Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Chordata
Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Chondrichthyes
Huxley, 1880
Subclasses and 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 rather than bone.
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Huxley, 1880
Subclasses and 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 rather than bone.
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Charles Lucien (Carlo) Jules Laurent Bonaparte, 2nd Prince of Canino and Musignano (May 24, 1803 – July 29, 1857) was a French naturalist and ornithologist. He was the son of Lucien Bonaparte and nephew of Emperor Napoleon.
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Batoidea
Orders
Rajiformes - common rays and skates
Pristiformes - sawfishes
Torpediniformes - electric rays
See text for families.
Batoidea
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Orders
Rajiformes - common rays and skates
Pristiformes - sawfishes
Torpediniformes - electric rays
See text for families.
Batoidea
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SHARK
General
Vincent Rijmen, Joan Daemen, Bart Preneel, Antoon Bosselaers, Erik De Win
1996
KHAZAD, Rijndael
Cipher detail
Key size(s):| 128 bits
Block size(s):| 64 bits
Substitution-permutation network
6
In cryptography,
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General
Vincent Rijmen, Joan Daemen, Bart Preneel, Antoon Bosselaers, Erik De Win
1996
KHAZAD, Rijndael
Cipher detail
Key size(s):| 128 bits
Block size(s):| 64 bits
Substitution-permutation network
6
In cryptography,
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class is the rank in the scientific classification of organisms in biology below Phylum and above Order.
For example, Mammalia is the class used in the classification of dogs, whose phylum is Chordata (animals with notochords) and order is Carnivora (mammals that eat meat).
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For example, Mammalia is the class used in the classification of dogs, whose phylum is Chordata (animals with notochords) and order is Carnivora (mammals that eat meat).
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Chondrichthyes
Huxley, 1880
Subclasses and 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 rather than bone.
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Huxley, 1880
Subclasses and 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 rather than bone.
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Rajidae
Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays. They are carnivorous, feeding mostly on smaller fish and crustaceans.
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Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays. They are carnivorous, feeding mostly on smaller fish and crustaceans.
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Batoidea
Orders
Rajiformes - common rays and skates
Pristiformes - sawfishes
Torpediniformes - electric rays
See text for families.
Batoidea
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Orders
Rajiformes - common rays and skates
Pristiformes - sawfishes
Torpediniformes - electric rays
See text for families.
Batoidea
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SHARK
General
Vincent Rijmen, Joan Daemen, Bart Preneel, Antoon Bosselaers, Erik De Win
1996
KHAZAD, Rijndael
Cipher detail
Key size(s):| 128 bits
Block size(s):| 64 bits
Substitution-permutation network
6
In cryptography,
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General
Vincent Rijmen, Joan Daemen, Bart Preneel, Antoon Bosselaers, Erik De Win
1996
KHAZAD, Rijndael
Cipher detail
Key size(s):| 128 bits
Block size(s):| 64 bits
Substitution-permutation network
6
In cryptography,
..... Click the link for more information.
Chondrichthyes
Huxley, 1880
Subclasses and 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 rather than bone.
..... Click the link for more information.
Huxley, 1880
Subclasses and 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 rather than bone.
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Chimaeriformes
Families
See text for families, genera and species.
Chimaeras are cartilaginous fish in the order Chimaeriformes. They are related to the sharks and rays, and are sometimes called ghost sharks, ratfish
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Families
See text for families, genera and species.
Chimaeras are cartilaginous fish in the order Chimaeriformes. They are related to the sharks and rays, and are sometimes called ghost sharks, ratfish
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Carcharodon
Smith, 1838
Species: C. carcharias
Binomial name
Carcharodon carcharias
(Linnaeus, 1758)
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Smith, 1838
Species: C. carcharias
Binomial name
Carcharodon carcharias
(Linnaeus, 1758)
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C. megalodon
Binomial name
Carcharodon megalodon
Agassiz, 1843
Carcharodon megalodon (or Carcharocles megalodon
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Binomial name
Carcharodon megalodon
Agassiz, 1843
Carcharodon megalodon (or Carcharocles megalodon
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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 waste energy
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A gill is a respiration organ that functions for the extraction of oxygen from water and the excretion of carbon dioxide. Unlike many small aquatic animals, which can absorb oxygen through the entire surface of their bodies, more complex aquatic organisms have gills specially
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dorsal fin is a fin located on the backs of some fishes, whales, dolphins, and porpoises, as well as the (extinct) ichthyosaurs. Its main purpose is to stabilize the animal against rolling and assist in sudden turns.
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sperm is derived from the word spermos (meaning "seed") and refers to the male reproductive cells. Sperm cells are the smaller gametes involved in fertilization.
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tropics are the geographic region of the Earth centered on the equator and limited in latitude by the Tropic of Cancer in the northern hemisphere, at approximately 23°30' (23.5°) N latitude, and the Tropic of Capricorn in the southern hemisphere at 23°30' (23.5°) S latitude.
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temperate latitudes of the globe lie between the tropics and the polar circles. The changes in these regions between summer and winter are generally mild, rather than extreme hot or cold. However, a temperate climate can have very unpredictable weather.
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