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Suborder Cladocera - Water Fleas

Spiny Water Flea - Bythotrephes longimanus - male - female Daphniidae - Simocephalus Bosminidae Chydoridae - Genus Chydorus, Alonella, Anchistropus, or Pseudochydorus Alonella, or close relative Daphniidae Camptocercus Leptodora kindtii
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Class Branchiopoda (Branchiopods)
Order Diplostraca
Suborder Cladocera (Water Fleas)
Other Common Names
Often called daphnia after the largest family, Daphniidae.
Explanation of Names
Author: Latreille, 1829
Less than 5 mm
A thin carapace encloses the body, but not the head and large antennae, which are used in locomotion.
Aquatic habitats including vernal pools.
Detritus, algae, and bacteria.
Life Cycle
In early spring, females are parthenogenetic, laying only female eggs. Later in the season, males are produced. After mating, females produce drought-resistant eggs that overwinter.
Print References
Works Cited
1.A Field Guide to the Animals of Vernal Pools
Leo P. Kenney and Matthew R. Burne. 2000. Massachusetts Division of Fisheries & Wildlife Natural Heritage & Endangered Species Program and Vernal Pool Association.