Mysidacea

 Gnathophausia zoea, copyright Alexander Semenov.

Belongs within: Eumalacostraca.
Contains: Mysida.

The Mysidacea are small, mostly marine shrimp-like crustaceans with an extensive carapace covering part of the first thorax section but originally connected to only one thoracic segment. There is some doubt as to whether the two major living groups, the Lophogastrida and Mysida, actually form a monophyletic unit. Lophogastrida differ from Mysida in the presence of gills on most thoracopods (Casanova et al. 1998).

<==Mysidacea
    |  i. s.: Gastrosaccus sanctusPP64
    |         Iiella ohshimai (Ii 1964)HM03
    |         Nipponomysis ornata (Ii 1964)HM03
    |         BowmaniellaS74
    |         Mesodopsis woolridgeiVS14
    |         Rhopalophtalmus terranatalis VS14
    |         PraunusBRW98
    |           |--P. flexuosusBRW98
    |           `--P. inermisBRW98
    |--+--MysidaMD01
    |  `--PygocephalomorphaMD01
    |       |--Jerometchenoria [Jerometichenoriidae]BWW93
    |       |    `--J. grandis Schram 1978BWW93
    |       |--TealliocarididaeBWW93
    |       |    |--Tealliocaris loudensisS74
    |       |    `--Pseudogalathea macconochiei (Etheridge 1879)BWW93
    |       |--NotocarididaeS74
    |       |    |--Notocaris tapscotti Broom 1931S74
    |       |    `--Paulocaris pachecoi Clarke 1920G88, S77
    |       `--PygocephalidaeS74
    |            |--Anthracaris gracilisG88
    |            |--MamayocarisS74
    |            |    |--M. jaskoskii Schram 1974S74
    |            |    `--M. jepseni Brooks 1962BWW93
    |            |--PygocephalusG88
    |            |    |--P. aisenvergiG88
    |            |    `--P. dubius [=Anthrapalaemon dubius]G88
    |            `--PseudotealliocarisBWW93
    |                 |--P. caudafimbriataG88
    |                 |--P. etheridgeiG88
    |                 `--P. palincsari Schram 1988BWW93
    `--LophogastridaMD01
         |--Peachocaris [Peachocarididae]BWW93
         |    |--P. acanthouraea Schram 1984BWW93
         |    `--P. strongi (Brooks 1962)BWW93
         |--EucopiidaeCJF98
         |    |--SchimperellaBWW93
         |    |    |--S. beneckei Bill 1914BWW93
         |    |    `--S. kessleri Bill 1914BWW93
         |    `--EucopiaCJF98
         |         |--E. sculpticauda (Faxon 1893)CJF98
         |         `--+--E. australis Dana 1852CJF98
         |            |--E. crassicornis Casanova 1997CJF98
         |            |--E. grimaldii Nouvel 1942CJF98
         |            |--E. linguicauda Tattersall 1957CJF98
         |            `--E. unguiculata (Willemoës-Suhm 1875)CJF98
         `--LophogastridaeCJF98
              |--ChalaraspidumCJF98
              |--ParalophogasterCJF98
              |--LophogasterCJF98
              |    |--L. spinosus Ortman 1906CJF98
              |    |--L. typicus Sars 1857CJF98
              |    `--L. voultensis Secretan & Riou 1986BWW93
              `--Gnathophausia [incl. Neognathophausia Petryashov 1992]CJF98
                   |--G. gracilis Willemoës-Suhm 1875CJF98
                   `--+--+--G. gigas Willemoës-Suhm 1875 [=Neognathophausia gigas]CJF98
                      |  `--G. ingens (Dohrn 1870) [=Neognathophausia ingens]CJF98
                      `--+--G. affinis Sars 1883CJF98
                         |--G. childressi Casanova 1996CJF98
                         |--G. elegans Sars 1883CJF98
                         |--G. fagei Casanova 1996CJF98
                         |--G. longispina Sars 1883CJF98
                         `--G. zoea Willemoës-Suhm 1873CJF98

*Type species of generic name indicated

References

[BRW98] Beesley, P. L., G. J. B. Ross & A. Wells (eds) 1998. Fauna of Australia vol. 5. Mollusca: The Southern Synthesis. Part A. Australian Biological Resources Study: Canberra.

[BWW93] Briggs, D. E. G., M. J. Weedon & M. A. Whyte. 1993. Arthropoda (Crustacea excluding Ostracoda). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 321–342. Chapman & Hall: London.

[CJF98] Casanova, J.-P., L. D. Jong & E. Faure. 1998. Interrelationships of the two families constituting the Lophogastrida (Crustacea: Mysidacea) inferred from morphological and molecular data. Marine Biology 132: 59–65.

[G88] Gray, J. 1988. Evolution of the freshwater ecosystem: the fossil record. Palaeogeography, Palaeoclimatology, Palaeoecology 62: 1–214.

[HM03] Hanamura, Y., & M. Matsuoka. 2003. Feeding habits of the sand shrimp, Crangon uritai Hayashi & Kim, 1999, in the central Seto Inland Sea, Japan. Crustaceana 76 (8): 1017–1024.

[MD01] Martin, J. W., & G. E. Davis. 2001. An updated classification of the Recent Crustacea. Natural History Museum Los Angeles County, Science Series 39: 1–124.

[PP64] Peres, J. M., & J. Picard. 1964. Nouveau manuel de bionomie benthique de la mer Mediterranee. Recueil des Travaux de la Station Marine d’Endoume, Bulletin 31 (27): 5–137.

[S74] Schram, F. R. 1974. Convergences between Late Paleozoic and modern caridoid Malacostraca. Systematic Zoology 23 (3): 323–332.

[S77] Schram, F. R. 1977. Paleozoogeography of Late Paleozoic and Triassic Malacostraca. Systematic Zoology 26 (4): 367–379.

[VS14] Vinther, J., M. Stein, N. R. Longrich & D. A. T. Harper. 2014. A suspension-feeding anomalocarid from the Early Cambrian. Nature 507: 496–499.

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