Gammaridea

Gammaridea
Eusirus holmi
(Eusiroidea: Eusiridae)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Amphipoda
Suborder: Gammaridea
Latreille, 1802
Diversity
85 families

Gammaridea is one of the suborders of the order Amphipoda, comprising small, shrimp-like crustaceans. Until recently, in a traditional classification, it encompassed about 7,275 (92%) of the 7,900 species of amphipods described by then, in approximately 1,000 genera, divided among around 125 families.[1] That concept of Gammaridea included almost all freshwater amphipods, while most of the members still were marine.

The group is however considered paraphyletic, and is under deconstruction by the amphipod taxonomists James K. Lowry and Alan A. Myers. In 2003 they moved several families from Gammaridea to join members of the former Caprellidea in a new suborder Corophiidea.[2] Further, in 2013 another large suborder Senticaudata was established, which now encompasses much of the original Gammaridea, particularly its freshwater families, and into which also the Corophiidea was merged.[3][4] The remaining Gammaridea encompasses 85 families and about 4,000 of the ca. 9,550 amphipod species recognized in 2014.[5][6] The family Gammaridae does not belong to Gammaridea in this new system.

  1. ^ John M. Foster; Sarah E. LeCroy; Richard W. Heard; Rita Vargas (2009). "Gammaridean amphipods". In Ingo S. Wehrtmann; Jorge Cortés (eds.). Marine Biodiversity of Costa Rica, Central America. Monographiae Biologicae. Vol. 86. Springer. pp. 265–274. ISBN 978-1-4020-8277-1.
  2. ^ A. A. Myers & J. K. Lowry (2003). "A phylogeny and a new classification of the Corophiidea Leach, 1814 (Amphipoda)". Journal of Crustacean Biology 23 (2): 443–485. doi:10.1651/0278-0372
  3. ^ Lowry, J.K. & Myers, A.A. (2013) A Phylogeny and Classification of the Senticaudata subord. nov. (Crustacea: Amphipoda). Zootaxa 3610 (1): 1-80.
  4. ^ Senticaudata WoRMS
  5. ^ World Amphipoda Database: Introduction (accessed 26 April 2014)
  6. ^ De Broyer, C. (2014) Gammaridea WoRMS