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Elasmobranchii is one of the two subclasses of cartilaginous fish in the class Chondrichthyes, the other being Holocephali . 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 ...
They and their close relatives, the sharks, compose the subclass Elasmobranchii. Rays are the largest group of cartilaginous fishes, with well over 600 species in 26 families. Rays are distinguished by their flattened bodies, enlarged pectoral fins that are fused to the head, and gill slits that are placed on their ventral surfaces.
Elasmobranchii is a subclass that includes the sharks and the rays and skates. Members of the elasmobranchii 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 ...
Risso's illustration of the marbled electric ray, accompanying his original species description. French naturalist Antoine Risso described the marbled electric ray as Torpedo marmorata in his 1810 Ichtyologie de Nice, ou histoire naturelle des poissons du département des Alpes maritimes (Ichthyology of Nice, or natural history of fishes in the Alpes-Maritimes).
Trump transferred 114.75 million shares, or 53% of Trump Media & Technology's outstanding stock, to the revocable trust of which he is the sole beneficiary, according to securities filings. Trump ...
NEW YORK (Reuters) - Huawei Technologies asked a U.S. judge to dismiss much of a federal indictment accusing the Chinese telecommunications company of trying to steal technology secrets from U.S ...
At present, it is known to exist only in the eastern Arabian Sea, parts of South Asia and Australia and Papua New Guinea. [2] The narrow sawfish is bentho-pelagic and is found at depths of about 100 meters (330 feet). The narrow sawfish prefers soft bottom-substrates, such as sand, mud, or seagrass, to rocky or coraline habitats.
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