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Die Tanzgarnelen (Rhynchocinetidae) sind eine Familie aus der Ordnung der Zehnfußkrebse (Decapoda). Die ungefähr zwölf Arten leben weltweit in subtropischen und tropischen Meeren.
Die Familie umfasst mittelgroße, oft auffällig rot weiß gestreifte Garnelen. Dieses Muster löst die Körperform optisch auf und trägt so zur Tarnung der Tiere bei. Männliche Tanzgarnelen haben häufig vergrößerte Scheren am ersten Beinpaar. Tanzgarnelen leben oft in großen Gruppen unter Überhängen und in dunklen Spalten. Tanzgarnelen sind Allesfresser bevorzugen jedoch tierische Nahrung. Sie fressen gerne verschiedene Wirbellose.
Tanzgarnelen werden wegen ihrer hübschen Färbung auch in Aquarien gehalten, fressen dort aber gerne auch an verschiedenen Korallen.
Die Tanzgarnelen (Rhynchocinetidae) sind eine Familie aus der Ordnung der Zehnfußkrebse (Decapoda). Die ungefähr zwölf Arten leben weltweit in subtropischen und tropischen Meeren.
The family Rhynchocinetidae are a group of small, reclusive red-and-white shrimp. This family typically has an upward-hinged foldable rostrum, hence its taxon name Rhynchocinetidae, which means movable beak; this gives these shrimps their common name of hinge-beak shrimps. The family contains only two genera, Cinetorhynchus and Rhynchocinetes.[1][2]
Rhynchocinetidae has historically been considered to include the single genus Rhynchocinetes, which was subdivided into two sub-genera. However, in 1995, Holthuis elevated the subgenus Cinetorhynchus to full generic status based on morphology. Members of Rhynchocinetes have two acute teeth on the central carina of the carapace, a supraorbital spine and no spine on the margins of the fourth and fifth abdominal somites. Cinetorhynchus differs in having three teeth on the carapace, no supraorbital spine and a single spine each on the margins of the fourth and fifth abdominal somites.[3]
Members of the family Rhynchocinetidae are colourful crustaceans, mostly banded or patterned in red and white. The rostrum is partially or completely articulated with the carapace and can be moved in a variety of ways. The advantages of this adaptation are unclear, but in combination with the spiny rostrum, it may enable the shrimp to wedge itself into a crevice and avoid being dislodged by a predator. The first pair of chelipeds are more robust than the second pair, and the carpus of the second pair is undivided. In males, particularly in larger, older individuals, the third pair of maxillipeds and the first pair of chelipeds are exceptionally large in proportion to those of females and younger males. Both pairs of chelipeds bear a bundle of spines at the tip which when retracted form a basket-like cage.[2]
Members of the family Rhynchocinetidae are found in both tropical and some temperate waters, from the littoral zone down to the continental shelf, inhabiting both coral and rocky reefs.[2]
The biology of the family has been little studied. Cinetorhynchus rigens in Bermuda was not attracted to baited traps but on examination, its faecal pellets contained mollusc shell fragments, algae and sponge spicules. It was nocturnal, hiding by day in crevices and emerging at night to feed.[2]
The family Rhynchocinetidae are a group of small, reclusive red-and-white shrimp. This family typically has an upward-hinged foldable rostrum, hence its taxon name Rhynchocinetidae, which means movable beak; this gives these shrimps their common name of hinge-beak shrimps. The family contains only two genera, Cinetorhynchus and Rhynchocinetes.
Les Rhynchocinetidae sont une famille de crevettes de l'ordre des Decapoda.
Selon World Register of Marine Species (30 décembre 2018)[2] :
Rhynchocinetidae is een familie van kreeftachtigen uit de klasse van de Malacostraca (hogere kreeftachtigen).
Rhynchocinetidae is een familie van kreeftachtigen uit de klasse van de Malacostraca (hogere kreeftachtigen).
Rhynchocinetidae é uma família de crustáceos decápodes que agrupa um pequeno número de espécies de pequenos e reclusivos camarões, com uma típica coloração corporal vermelha e branca. A família apresenta uma configuração diferenciada do rostrum com uma elevação da parte terminal, dobrável,[1] que justifica o nome Rhynchocinetidae, que significa bico móvel. A família contém apenas dois géneros, Cinetorhynchus e Rhynchocinetes.[1]
Rhynchocinetidae é uma família de crustáceos decápodes que agrupa um pequeno número de espécies de pequenos e reclusivos camarões, com uma típica coloração corporal vermelha e branca. A família apresenta uma configuração diferenciada do rostrum com uma elevação da parte terminal, dobrável, que justifica o nome Rhynchocinetidae, que significa bico móvel. A família contém apenas dois géneros, Cinetorhynchus e Rhynchocinetes.
