Medusa fish-like
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Obsolete systematic group The taxon dealt with here is not part of the systematics presented in the German-language Wikipedia. More information can be found in the article text. |
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| Stromateoidei | ||||||||||
| Jordan , 1923 | ||||||||||
The Medusa fish-like (Stromateoidei) were one of the traditional suborders of the perch-like (Perciformes). They live pelagic or on the coasts of warm and temperate seas in deeper water. Medusa fish species live on plankton , jellyfish and rib jellyfish .
The six families of Medusa fish-like are in a clade with the Ex- Scombroidei and are not more closely related than z. B. with the families of the ex-Scombroidei or with Icosteus aenigmaticus . Therefore, in a revision of the bony fish classification from the beginning of 2013, they are assigned to the order Scombriformes together with these and some other families .
features
Medusa fish become up to 1.2 meters long. Their mouth is short and rounded, the premaxillary is not or only slightly protractile (can be pushed forward). The teeth sit on the vomer , palatium, and tongue, but they can also be absent. Your skin is rich in pores (the pores lead into a skin canal system), the scales are round scales (and then usually fall out easily), more rarely comb scales . The gill basket is followed by a pair of "pharyngeal" or pharyngeal sacs (Bühler 1930) with rows of papillae and teeth or gill-like spines of unclear function (missing in Amarsipus ). The skeleton is only slightly ossified. Adult animals do not have a swim bladder . Around the eyes there is a ring of connective tissue with a free inner edge, the so-called fatty eyelid , which serves to keep deforming eddies away from the cornea during faster swimming.
The fry often look very different, are striped or spotted and stay between the tentacles of jellyfish and state jellyfish for protection. However, they are hardly protected from the stinging cells by a layer of mucus . Before they reach sexual maturity, they regress their swim bladder.
Familys
There are six families and 16 genera with around 70 species .
- Amarsipidae
- Drift fish (Ariommatidae)
- Black fish (Centrolophidae)
- Galley fish (Nomeidae)
- Medusa fish (Stromateidae)
- Square tails (Tetragonuridae)
Individual evidence
- ↑ Ricardo Betancur-R., Richard E. Broughton, Edward O. Wiley, Kent Carpenter, J. Andrés López, Chenhong Li, Nancy I. Holcroft, Dahiana Arcila, Millicent Sanciangco, James C Cureton II, Feifei Zhang, Thaddaeus Buser, Matthew A. Campbell, Jesus A Ballesteros, Adela Roa-Varon, Stuart Willis, W. Calvin Borden, Thaine Rowley, Paulette C. Reneau, Daniel J. Hough, Guoqing Lu, Terry Grande, Gloria Arratia, Guillermo Ortí: The Tree of Life and a New Classification of Bony Fishes. PLOS Currents Tree of Life. 2013 Apr 18. Edition 1. doi: 10.1371 / currents.tol.53ba26640df0ccaee75bb165c8c26288 , PDF ( Memento of the original from October 13, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Thomas J. Near, A. Dornburg, RI Eytan, BP Keck, WL Smith, KL Kuhn, JA Moore, SA Price, FT Burbrink, M. Friedman & PC Wainwright. 2013. Phylogeny and tempo of diversification in the superradiation of spiny-rayed fishes. Proceedings of the National Academy of Sciences of the United States of America. 101: 12738-21743. doi: 10.1073 / pnas.1304661110 , PDF
literature
- Kurt Fiedler: Fish (= textbook of special zoology. Vol. 2: Vertebrates. Part. 2). Gustav Fischer, Jena 1991, ISBN 3-334-00338-8 .
- JS Nelson: Fishes of the World . John Wiley & Sons, 2006 ISBN 0-471-25031-7
