2-409: Aselloidea Stenetrioidea Janiroidea Gnathostenetroidoidea Asellota is a suborder of isopod crustaceans found in marine and freshwater environments. Roughly one-quarter of all marine isopods belong to this suborder. Members of this suborder are readily distinguished from other isopods by their complex copulatory apparatus. Other characteristics include six-jointed antennal peduncle,
4-629: The styliform uropods (a character shared with some other isopod groups), the fusion of pleonites 5, 4 and sometimes 3 to the pleotelson, and absence of the first pleopod in females. The suborder Asellota comprises these families: Some classifications also include the Microcerberidea within Asellota. Janiroidea Sars, 1897 Aselloidea Latreille, 1802 Stenetrioidea Hansen, 1905 Gnathostenetroidoidea Kussakin, 1967 This isopod -related article
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