Paramysis Explained

Paramysis (from the Greek affix Greek, Modern (1453-);: para-, "near", "beside", and the genus name Mysis) is a genus of mysid crustaceans (Mysidacea) in family Mysidae, distributed in coastal zone of low boreal East Atlantic Ocean, Mediterranean Sea and the basins of Black Sea, Sea of Azov and Caspian Sea (Ponto-Caspian Basin).

Biogeography

The majority of Paramysis species are brackish- or freshwater endemics of the Ponto-Caspian Basin; some of them naturally spread more than up large rivers, including the Volga, Don, Dnieper and Danube. A number of Ponto-Caspian species have been introduced outside the native range. Marine species from the Atlantic Ocean and Mediterranean Sea have probably descended from ancient Ponto-Caspian populations.[1]

Diversity

There are 24 species[2] [3] [4] classified into 7 subgenera.[3] [5] [6] [7] Body length ranges from 1cmto4cmcm (00inchesto02inchescm). The largest species, like P. eurylepis, P. inflata, are found only in the Caspian Sea. Generic characters: subrostral plate; large eyes on short stalk; antennal scale with smooth outer margin, ended by strong spine, and distal segment rudimentary with five setae; four segments of pereiopod 1–4 carpopropodus; five segments in pleopod 4 of male.[3] Consumed by fishes; particularly important for juvenile sturgeons and zander.

Two extinct species, previously included into this genus,[8] [9] have been recently moved into extinct genus Sarmysis.[10]

Species

Subgenus Paramysis sensu stricto
Subgenus Metamysis G. O. Sars, 1893
Subgenus Serrapalpisis Daneliya, 2004
Subgenus Mesomysis Czerniavsky, 1882
Subgenus Nanoparamysis Daneliya, 2004
Subgenus Longidentia Daneliya, 2004
Subgenus Pseudoparamysis Băcescu, 1940
Incertae sedis

Notes and References

  1. Asta Audzijonyte . Mikhail E. Daneliya . Nikolai Mugue . Risto Väinölä . 2008 . Phylogeny of Paramysis (Crustacea: Mysida) and the origin of Ponto-Caspian endemic diversity: Resolving power from nuclear protein-coding genes . . 46 . 2 . 738–759 . 10.1016/j.ympev.2007.11.009 . 18187346.
  2. R. Labat . 1953 . Paramysis nouveli n. sp. et Paramysis bacescoi n. sp. deux espéces de Mysidacés confondues, jusqu'à présent, avec Paramysis helleri (G. O. Sars, 1877) . Bulletin of the Institute of Oceanography, Monaco . 1034 . 5 . 1–24.
  3. M. E. Daneliya . 2004 . K sistematike mizid roda Paramysis (Crustacea, Mysidacea) iz basseina Ponto-Kaspiya . Zoologicheskii Zhurnal . 83 . 408–416.
  4. M. E. Daneliya, A. Audzijonyte & R. Väinölä . 2007 . Diversity within the Ponto-Caspian Paramysis baeri Czerniavsky sensu lato revisited: P. bakuensis G. O. Sars restored (Crustacea: Mysida: Mysidae) . . 1632 . 21–36 . 10.11646/zootaxa.1632.1.2 .
  5. Book: A. N. Derzhavin . 1939 . Mizidy Kaspiya . Izdatelstvo AzFAN . Baku, Azerbaijan.
  6. M. Băcescu . 1940 . Les Mysidacés des eaux roumaines (étude taxonomique, morphologique, bio-géographique et biologique) . Extrait des Annales Scientifiques de l'Université de Jassy . 26 . 2 . 453–804.
  7. K.J. Wittmann, A.P. Ariani, M. Daneliya . 2016 . The Mysidae (Crustacea: Peracarida: Mysida) in fresh and oligohaline waters of the Mediterranean. Taxonomy, biogeography, and bioinvasion . Zootaxa . 4142 . 1 . 1–70 . 10.11646/zootaxa.4142.1.1. 27470833 .
  8. G. Voicu . 1974 . Identification des Myside's fossiles dans les depots du Miocène supérieur de la Paratéthys Centrale et Orientale et leur importance paléontologique, stratigraphique et paléogéographique . Geol. Carpath. . 25 . 23l–239.
  9. 10.2307/1485236 . G. Voicu . 1981 . Upper Miocene and Recent mysid statoliths in Central and Eastern Paratethys . . 27 . 3 . 227–247 . 1485236.
  10. I. Petrescu . K. Wittmann . 2009 . Catalogue of the Mysida type collection (Crustacea: Peracarida) from the "Grigore Antipa" National Museum of Natural History (Bucuresti) . Travaux du Muséum National d'Histoire Naturelle "Grigore Antipa" . 52 . 53–72.

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