Kraemeriidae

The division of living beings into systematics is a continuous subject of research. Different systematic classifications exist side by side and one after the other. The taxon treated here has become obsolete due to new research or is not part of the group systematics presented in the German-language Wikipedia.

Kraemeria samoensis

As Kraemeriidae ( Whitley , 1935) a family of goby-like fish was designated that occurs in the area of ​​the Indo-Pacific , especially in the sea, more rarely in brackish water or z. B. in Madagascar also in fresh waters. The fish live in shallow water on sandy bottoms, often buried in the sand, so that only the head is visible. Today the family is no longer valid and the two genera assigned to it are placed in the family of gobies (Gobiidae). Together with the genus Parkraemeria , however , the two genera of the Kraemeriidae form a monophyletic clade , which is known as the sand diver.

features

The Kraemeriidae are a maximum of six centimeters long. Your body is elongated and flaky. The eyes are small, the tongue is two-pointed. The fish have five gill arches . The dorsal and anal fin have not grown together with the caudal fin . The dorsal fin is usually supported by four to six weak hard rays and 13 to 18 soft rays. The pelvic fins have one hard and five soft rays. In Kraemeria they are separated, in Gobitrichinotus they have grown together.

Genera and species

There are two genera and nine species.

• Gobitrichinotus Fowler, 1943
  • Gobitrichinotus arnoulti Kiener, 1963
  • Gobitrichinotus radiocularis Fowler, 1943
• Kraemeria Steindachner, 1906
  • Kraemeria bryani Schultz, 1941
  • Kraemeria cunicularia Rofen, 1958
  • Kraemeria galatheaensis Rofen, 1958
  • Kraemeria merensis Whitley, 1935
  • Kraemeria nuda (Regan, 1908)
  • Kraemeria samoensis Steindachner, 1906
  • Kraemeria tongaensis Rofen, 1958

Individual evidence

1. ↑ Gobitrichinotus arnoulti, Kiener, 1963 on Fishbase.org (English)
2. ^ Joseph S. Nelson, Terry C. Grande, Mark VH Wilson: Fishes of the World. Wiley, Hoboken, New Jersey, 2016, ISBN 978-1118342336
3. ↑ Christine E. Thacker, Dawn M. Roje: Phylogeny of Gobiidae and identification of gobiid lineages. Systematics and Biodiversity (2011), 9 (4): 329-347, ISSN  1478-0933 doi : 10.1080 / 14772000.2011.629011
4. ^ Joseph S. Nelson, Fishes of the World , John Wiley & Sons, 2006, ISBN 0-471-25031-7
5. ↑ Kraemeriidae on Fishbase.org (English)