Cnesterodon

Cnesterodon
Ten- spotted fish ( Cnesterodon decemmaculatus )
Systematics
Superordinate : Earfish relatives (Atherinomorphae) Order : Toothpies (Cyprinodontiformes) Subordination : Cyprinodontoidei Family : Viviparous toothcarps (Poeciliidae) Subfamily : Live-bearing toothcarps (Poeciliinae) Genre : Cnesterodon
Scientific name
Cnesterodon
Garman , 1895

Cnesterodon is a genus of viviparous toothcarps from southeastern South America .

features

These are representatives of the viviparous toothcarps that remain small and reach a maximum length of 4.5 cm, with the males remaining significantly smaller. The anal fin of the males is typically transformed into a gonopodium in the subfamily . The gonopodium is long and has a hook-shaped extension at the tip. The fish are inconspicuous gray-yellow with a silvery belly and sometimes appear glassy and translucent. The ten-spotted fish ( Cnesterodon decemmaculatus ), the type species of its genus, discovered by Charles Darwin between February 1832 and October 1835 , has a series of black dots on the side of the body.

Cnesterodon species inhabit calm waters such as ponds and ditches, which are rich in vegetation and can reach temperatures of over 30 ° C in summer.

species

• Cnesterodon brevirostratus
• Cnesterodon carnegiei
• Zehnfleckkärpfling ( cnesterodon decemmaculatus (Jenyns, 1842) ), formerly sometimes with the speckled mosquitofish confused
• Cnesterodon holopteros
• Cnesterodon hypselurus
• Cnesterodon iguape
• Cnesterodon omorgmatos
• Cnesterodon pirai
• Cnesterodon raddai
• Cnesterodon septentrionalis

literature

• Manfred K. Meyer, Lothar Wischnath, Wolfgang Foerster: Livebearers ornamental fish: Species of the world. Mergus Verlag für Natur- und Heimtierkunde Baensch, Melle 1985, ISBN 3-88244-006-6
• Dieter Gentzsch: Cnesterodon. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 247 f.

Web links

• Cnesterodon on Fishbase.org (English)

Individual evidence

1. ↑ Dieter Gentzsch: cnesterodon decemmaculatus. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 248.