Nandopsis

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Nandopsis
Nandopsis tetracantus

Nandopsis tetracantus

Systematics
Ovalentaria
Order : Cichliformes
Family : Cichlids (Cichlidae)
Subfamily : Cichlinae
Tribe : Heroini
Genre : Nandopsis
Scientific name
Nandopsis
Gill , 1862

Nandopsis (=similar to[the genus] Nandus ) is a genus of medium-sized cichlids found on the Caribbean islands of Hispaniola and Cuba . The genus is closely related to Central American cichlids and was isolated from their relativeswhen the Greater Antilles split off from Central Americain the Eocene .

features

Nandopsis species are 20 to 24 cm long and have a typical, compact cichlid shape with a large head, a large, protruding mouth and large fangs. Males grow larger than females and get a steeper forehead profile or even a protruding frontal hump with age. The genus is considered difficult to diagnose and only a few differences to Central American cichlids can be specified. As synapomorphies a strong central projection on the lower jaw are symphysis tongue-side additional tips on the rear jaw teeth, a well-developed articular surface on, Palatinum and short flattened teeth on the fourth gear plate the upper Pharyngobranchiale (a bone of the gill skeleton).

Way of life

Nandopsis species live in inland waters, but sometimes also in brackish water or in lagoons with sea water. They practice brood care, are substrate spawners and usually lay their extensive clutch on a flat, horizontally lying stone. The male takes over the territorial defense, while the female looks after the spawn. The hatched fish larvae that are not yet buoyant are placed in sand pits. If the fry are able to swim, they are protected by both parents.

species

Currently the genus Nandopsis consists of three species.

Nandopsis woodringi, a fourth species known only as a fossil, has been synonymous with Nandopsis haitiensis . Nandopsis sheljuzhkoi is a synonym of Afronandus sheljuzhkoi , a species of fish from the multi-spined family , which is only distantly related to the genus Nandopsis .

literature

  • Prosanta Chakrabarty (2006): Taxonomic status of the Hispaniolan Cichlidae. Occasional Papers of the Museum of Zoology, University of Michigan
  • Prosanta Chakrabarty (2007): A morphological phylogenetic analysis of Middle American cichlids with special emphasis on the section 'Nandopsis' sensu Regan. Miscellaneous Publications, Museum of Zoology, University of Michigan No. 198: i-iv + 1-31.
  • Claus Schaefer: Nandopsis. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. 2 volumes. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 674 f.

Individual evidence

  1. ↑ ProSanta Chakrabarty: Systematics and historical biogeography of Greater Antillean Cichlidae. In: Molecular Phylogenetics and Evolution. Volume 39, No. 3, 2006, pp. 619-627, doi: 10.1016 / j.ympev.2006.01.014

Web links

Commons : Nandopsis  - collection of images, videos and audio files