Hyperia

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Hyperia
Hyperia macrocephala .mw-parser-output .Person {font-variant: small-caps} Dana, 1853

Hyperia macrocephala Dana , 1853

Systematics
Class : Higher crabs (Malacostraca)
Order : Flea crabs (Amphipoda)
Subordination : Hyperiidea
Family : Hyperiidae
Genre : Hyperia
Scientific name
Hyperia
Latreille in Desmarest , 1823

Hyperia is a genus from the family of Hyperiidae within the suborder hyperiidea and the order of the flea crabs (Amphipoda). The scientific name is derived from a source of the same name in Thessaly .

Representatives of the genus can be found in cold waters of high geographical latitudes or great depths. They spend at least part of their life cycle on umbrella jellyfish (Scyphozoa).

features

With a length of 10 to 30 mm, Hyperia are among the larger members of the family. Your head is wider than it is long and has normally formed compound eyes . In the females the peraeon is enlarged, in all peraeopodn the coxae are free. They have no ridges and no hairs. The bases of the antennas are tripartite. The scissors are only indistinctly formed on the first leg, the second has clearly formed scissors. The scissor processes are spoon-shaped. The fifth and sixth links of the first two legs have numerous spines. Legs 5 through 7 are shorter than legs three and four. The species show a pronounced sexual dimorphism , so that males and females were sometimes described as different species.

species

Seven species are currently assigned to the genus Hyperia :

swell

Web links

Commons : Hyperia  - Collection of Images
  • Hyperia , Encyclopedia of Life (EOL) (English)

literature

  • Thomas E. Bowman: Pelagic Amphipods of the Genus Hyperia and Closely Related Genera (Hyperiidea: Hyperiidac) . In: Smithsonian Contributions to Zoology . tape 136 . Smithsonian Institution Press, Washington 1973 (English, si.edu [PDF; 3.2 MB ]).

Individual evidence

  1. ^ Genus Hyperia in the Integrated Taxonomic Information System (ITIS) (English) .