Bathynellacea | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropod |
Subphylum: | Crustacea |
Class: | Malacostraca |
Superorder: | Syncarida |
Order: | Bathynellacea Chappuis, 1915 [1] |
Families [1] | |
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Bathynellacea is an order of crustaceans which live interstitially in groundwater.[2] Some species can tolerate low salt concentrations, and at least one African species is a thermophile, living in hot springs and tolerating temperatures up to 55 °C (131 °F).[3] Bathynellaceans are minute, blind, worm-like animals with short, weak legs,[4] reaching a maximum size of 3.4 millimetres (0.13 in).[5] They are found on every continent except Antarctica, although they are missing from some islands, including Fiji, New Caledonia and the Caribbean islands.[3] There are two families, Bathynellidae and Parabathynellidae; a third family, "Leptobathynellidae", is considered a synonym of Parabathynellidae.[6]