Robuta

https://mapress.com/zt/article/view/zootaxa.1389.1.3 Ampelisca mississippiana : a new species (Crustacea: Amphipoda: Gammaridea) from the Mississippi... a new from the species https://nla.gov.au/nla.obj-2769148233/view Amphipoda gammaridea amphipoda gammaridea