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Daphnia pulex.png
Daphnia pulex
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Branchiopoda
Order: Cladocera
Suborder: Anomopoda
Family: Daphniidae
Straus, 1820

Daphniidae is a family of water fleas in the sub-order Anomopoda.


Members of the family Daphniidae differ from other, similar cladocerans, such as Macrotrichidae and Moinidae, in that the antennae of females are short and immobile.[1]


The feeding mechanism of the members of the family Daphniidae differs from that of Macrotrichidae in allowing the animals to engage in filter-feeding, rather than having to scrape food from a surface. They have evolved to fill a number of different ecological niches. Scapholeberis and Megafenestra contain species adapted to living around the surface film; Simocephalus species cling to objects while filter-feeding; others have developed a pelagic lifestyle.[2]


The family Daphniidae contains 121 species in five genera:[3][4][5]

The members of the family Moinidae may also be placed among the Daphniidae.[6]

See also[edit]


  1. ^ William David Williams (1980). "Arachnids and crustaceans". Australian Freshwater Life: the Invertebrates of Australian Inland Waters (2nd ed.). Macmillan Education. pp. 118–184. ISBN 978-0-333-29894-7.
  2. ^ Geoffrey Fryer (1995). "Phylogeny and adaptive radiation within the Anomopoda: a preliminary exploration". In Petter Larsson; Lawrence J. Weider. Cladocera as Model Organisms in Biology: Proceedings of the Third International Symposium on Cladocera, held in Bergen, Norway, 9–16 August 1993. Issue 107 of Developments in Hydrobiology. Springer. doi:10.1007/BF00031997. ISBN 978-0-7923-3471-2.
  3. ^ L. Forró; N. M. Korovchinsky; A. A. Kotov; A. Petrusek (2008). "Global diversity of cladocerans (Cladocera; Crustacea) in freshwater" (PDF). Hydrobiologia. 595 (1): 177–184. doi:10.1007/s10750-007-9013-5.
  4. ^ WoRMS (2010). "Daphniidae". World Register of Marine Species. Retrieved February 14, 2012.
  5. ^ "Daphniidae Straus, 1820". Integrated Taxonomic Information System. Retrieved February 14, 2012.
  6. ^ 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.

External links[edit]