Anaspidacea

{{Short description|Order of crustaceans}}

{{Automatic Taxobox

| image = Koonunga cursor.png

| image_caption = Koonunga cursor male

| taxon = Anaspidacea

| authority = Calman, 1904

| subdivision_ranks = Families

| subdivision = See text

}}

Anaspidacea is an order of crustaceans, comprising eleven genera in four families. Species in the family Anaspidesidae vary from being strict stygobionts (only living underground) to species living in lakes, streams and moorland pools, and are found only in Tasmania.{{cite web |author=J. K. Lowry & M. Yerman |date=October 2, 2002 |url=http://crustacea.net/crustace/anaspidacea/www/anaspid.htm |title=Anaspidacea: Families – Anaspididae |accessdate=January 1, 2012 |archive-url=https://web.archive.org/web/20101213163428/http://crustacea.net/crustace/anaspidacea/www/anaspid.htm |archive-date=December 13, 2010 |url-status=dead }} Koonungidae is found in Tasmania and the south-eastern part of the Australian mainland, where they live in the burrows made by crayfish and in caves.{{cite web |author=J. K. Lowry & M. Yerman |date=October 2, 2002 |url=http://crustacea.net/crustace/anaspidacea/www/koonung.htm |title=Anaspidacea: Families – Koonungidae |accessdate=January 1, 2012 |archive-url=https://web.archive.org/web/20120426083538/http://crustacea.net/crustace/anaspidacea/www/koonung.htm |archive-date=April 26, 2012 |url-status=dead }} The families Psammaspididae and Stygocarididae are both restricted to caves, but Stygocarididae has a much wider distribution than the other families, with Parastygocaris having species in New Zealand and South America as well as Australia; two other genera in the family are endemic to South America, and one, Stygocarella, is endemic to New Zealand.{{cite journal |author=Estela C. Lopretto & Juan J. Morrone |title=Anaspidacea, Bathynellacea (Crustacea, Syncarida), generalised tracks, and the biogeographical relationships of South America |journal=Zoologica Scripta |volume=27 |issue=4 |pages=311–318 |year=1998 |doi=10.1111/j.1463-6409.1998.tb00463.x|s2cid=84696879 }}{{cite web |author=J. K. Lowry & M. Yerman |date=October 2, 2002 |url=http://crustacea.net/crustace/anaspidacea/www/psamma.htm |title=Anaspidacea: Families – Psammaspididae |accessdate=January 1, 2012 |archive-url=https://web.archive.org/web/20120426083551/http://crustacea.net/crustace/anaspidacea/www/psamma.htm |archive-date=April 26, 2012 |url-status=dead }}{{cite web |author=J. K. Lowry & M. Yerman |date=October 2, 2002 |url=http://crustacea.net/crustace/anaspidacea/www/stygo.htm |title=Anaspidacea: Families – Stygocarididae |accessdate=January 1, 2012 |archive-url=https://web.archive.org/web/20120426083602/http://crustacea.net/crustace/anaspidacea/www/stygo.htm |archive-date=April 26, 2012 |url-status=dead }}