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Hemimysis anomala GLERL 4.jpg
Hemimysis anomala (Mysida)
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Subclass: Eumalacostraca
Superorder: Peracarida
(unranked): Mysidacea
A. H. Haworth, 1825

The Mysidacea is a group of shrimp-like crustaceans in the superorder Peracarida, comprising the two extant orders Mysida and Lophogastrida and the prehistoric Pygocephalomorpha. Current data indicate that despite their external similarities, the three orders are not closely related,[1] and the taxon Mysidacea is not used in modern taxonomy.[2][3][4][5]


  1. ^ K. Meland & E. Willassen (2007). "The disunity of "Mysidacea" (Crustacea)" (PDF). Molecular Phylogenetics and Evolution. 44 (3): 1083–1104. PMID 17398121. doi:10.1016/j.ympev.2007.02.009. 
  2. ^ R. Brusca & G. Brusca (2003). Invertebrates. Sunderland, Massachusetts: Sinauer Associates. 
  3. ^ Gary Anderson (January 20, 2010). "Peracarida Taxa and Literature (Cumacea, Lophogastrida, Mysida, Stygiomysida and Tanaidacea)". 
  4. ^ J. Mees (2010). "Mysidacea". World Register of Marine Species. Retrieved November 13, 2010. 
  5. ^ Joel W. Martin & George E. Davis (2001). An Updated Classification of the Recent Crustacea (PDF). Natural History Museum of Los Angeles County. pp. 1–132.