Schindlerfish

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Schindlerfish
Systematics
Acanthomorphata
Spinefish (Acanthopterygii)
Perch relatives (Percomorphaceae)
Order : Gobies (Gobiiformes)
Family : Gobies (Gobiidae)
Genre : Schindlerfish
Scientific name
Schindleria
Giltay , 1934

The Schindler fish ( Schindleria ) are a genus of very small marine fish. They occur in the Red Sea and in the tropical western Pacific from the Ryūkyū Islands and the South China Sea via New Guinea to the south-eastern Pacific ( Easter Island , Salas y Gómez ).

features

Schindlerfish remain in a larva-like, neotene state throughout their life and thus become sexually mature . Their elongated body reaches, depending on the species, a length of 8.4 mm to 25 mm. The smallest species, Schindleria brevipinguis , is considered one of the smallest fish and one of the smallest vertebrates.

Schindlerfish have a transparent body with translucent gonads. A large part of the bones does not develop. Your front kidney (pronephros) remains functional throughout life. The low dorsal fin is supported by 15 to 22 unbranched fin rays, the anal fin by 11 to 17. The pectoral fins have 11 to 18 fin rays, the pelvic fins are absent. The caudal fin has 13 main rays. The number of vertebrae is 31 to 44, that of the Branchiostegal rays five.

Schindlerfish are attracted by artificial light at night.

Systematics

The Schindlerfish were initially placed as a separate suborder Schindlerioidei in the order of the perch-like (Perciformes), but were then considered as the family Schindleriidae of the goby-like (Gobioidei, today Gobiiformes). The ichthyologist Christine E. Thacker puts them in their phylogenetic study of Gobioidei even within the family of gobies (Gobiidae).

species

Seven types have been described:

literature

  • Joseph S. Nelson : Fishes of the World. Wiley, New York 2006, ISBN 0-471-25031-7 .
  • Kurt Fiedler: Textbook of Special Zoology, Volume II, Part 2: Fish . Gustav Fischer Verlag Jena, 1991, ISBN 3-334-00339-6
  • Christine E. Thacker: Phylogeny of Gobioidei and Placement within Acanthomorpha, with a New Classification and Investigation of Diversification and Character Evolution. Copeia 2009 (1): 93-104. 2009 doi : 10.1643 / CI-08-004

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