Gammaridea

{{Short description|Former suborder of crustaceans}} {{Paraphyletic group | auto = yes | taxon = Gammaridea | authority = Latreille, 1802 | includes = See text | image = Gammarini (Gammaridea) delle alghe e della sabbia del litorale del golfo di Napoli (C. Merculiano).jpg | image_caption = Gammarids from the Gulf of Naples{{efn|From left to right, top to bottom:{{Flatlist|  * ''Gammarus locusta'' (Linnaeus, 1758) (♂ & ♀) * ''Amphithoe rubricata'' (Montagu, 1808) (♂) * ''Hyale pontica'' Rathke, 1836 (♂ & ♀) * ''Ampelisca rubella'' A. Costa, 1864 (♂) * ''Deshayesorchestia deshayesii'' (Audouin, 1826) (♂) * ''Apohyale prevostii'' (H. Milne Edwards, 1830) (♂ & ♀) * ''Podocerus brasiliensis'' (Dana, 1853) (♂) * ''Transorchestia chiliensis'' (H. Milne Edwards, 1840) (♂) * ''Aora gracilis'' (Spence Bate, 1857) (♂) * ''Maera grossimana'' (Montagu, 1808) (♂) * ''Orchestia gammarellus'' (Pallas, 1766) (♂) * ''Cymadusa crassicornis'' (Costa, 1853) (♀)}}}} }}

'''Gammaridea''' was one of the suborders of the order Amphipoda, comprising small, shrimp-like crustaceans. 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.<ref name="Foster">{{cite book |author1=John M. Foster |author2=Sarah E. LeCroy |author3=Richard W. Heard |author4=Rita Vargas |year=2009|chapter=Gammaridean amphipods |pages=265–274 |editor1=Ingo S. Wehrtmann |editor2=Jorge Cortés |title=Marine Biodiversity of Costa Rica, Central America |volume=86 |series=Monographiae Biologicae |publisher=Springer |isbn=978-1-4020-8277-1 |chapter-url=https://books.google.com/books?id=m1ifNnkAhAAC&pg=PA266}}</ref> That concept of Gammaridea included almost all freshwater amphipods, while most of the members still were marine.

The group is however considered paraphyletic, and was deconstructed in a series of papers 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.<ref>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</ref> Further, in 2013 another large suborder Senticaudata was established, which would encompass much of the original Gammaridea, particularly its freshwater families, and into which also the Corophiidea was merged.<ref name=LM13>Lowry, J.K. & Myers, A.A. (2013) [http://www.mapress.com/zootaxa/2013/f/zt03610p080.pdf A Phylogeny and Classification of the Senticaudata subord. nov. (Crustacea: Amphipoda)]. Zootaxa 3610 (1): 1-80.</ref><ref name = Senticaudata>[http://www.marinespecies.org/aphia.php?p=taxdetails&id=719424 Senticaudata] WoRMS</ref> The remaining 85 Gammaridea families, of superfamilies Liljeborgioidea, Lysianassoidea and Eusiroidea were rearranged to the new suborder Amphilochoidea in the final subordinal revision (2017), which no longer recognizes Gammaridea as a taxon.<ref name=Lowry2017>{{cite journal |url=http://www.mapress.com/j/zt/article/view/zootaxa.4265.1.1/11015 |doi=10.11646/zootaxa.4265.1.1 |title=A Phylogeny and Classification of the Amphipoda with the establishment of the new order Ingolfiellida (Crustacea: Peracarida) |first1=J.K. |last1=Lowry |first2=A.A. |last2=Myers |journal=Zootaxa |publisher=Magnolia Press |volume=4265 |issue=1 |year=2017 |pages=001–089 |pmid=28610392 |doi-access=free }}</ref><ref name=wad>{{BioRef|WoRMS|url=https://www.marinespecies.org/amphipoda/index.php |title=Introduction |db= World Amphipoda Database |access-date=9 January 2025}}</ref>

==References== {{noteslist}} {{Reflist|32em}}

==External links== *{{Commons category-inline}} *{{Wikispecies-inline}}

Category:Amphipoda