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Concept
Micropogonias
Résumé
Micropogonias is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. These fishes are found in the eastern Pacific and western Atlantic Oceans.
Micropogonias was first proposed as a genus in 1831 by the French naturalist and ornithologist Charles Lucien Bonaparte, with Micropogon lineatus being its type species by virtue of being a replacement name. Micropgon lineatus had been described by Georges Cuvier in 1830 with its type locality given as Havana. However, Cuviers' name was objectively invalid as it had already been used for Micropogon Boie, 1826 in birds. It was subsequently determined that Cuviers' M. lineatus was a synonym of Desmarest's Umbrina furnieri and so M. funieri is the type species of the genus Micropogonias. This genus has been placed in the subfamily Micropogoniinae by some workers, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sciaenidae, which it places in the order Acanthuriformes.
Micropogonias combines micro, which means "small", with pogonias meaning "bearded", an allusion to the small barbels on the chin of the type species.
Micropogonias has the following species classified within it:
Micropogonias altipinnis Günther, 1865 (Tailfin croaker)
Micropogonias ectenes. (Jordan & Gilbert, 1883) (Slender croaker)
Micropogonias fasciatus (de Buen, 1961)
Micropogonias furnieri (Desmarest, 1823) (Whitemouth croaker)
Micropogonias megalops (Gilbert, 1890)
Micropogonias undulatus (Linnaeus, 1766) (Atlantic croaker)
However, Catalog of Fishes recognises the following species as valid within Micropogonias:
Catalog of Fishes treats M. ectenes as a synonym of M. altipinnis and M. fasciatus as a synonym of Paralonchurus peruanus.
Micropogonias croakers have an elongated body, with a high dorsal profile and an almost flat ventral surface and a conical head. The preoperculum has between 10 and 14 spines on its margin with between 2 and 5 robust spines at its angle.
Source officielle
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