A new multilocus phylogeny reveals overlooked diversity in African freshwater crabs (Brachyura: Potamoidea): a major revision with new higher taxa and genera Author Cumberlidge, Neil Author Daniels, Savel R. text Zoological Journal of the Linnean Society 2022 2022-03-11 194 4 1268 1311 journal article 55974 10.1093/zoolinnean/zlab082 925c7d53-9b52-4a28-b2b0-bbc049e5945c 0024-4082 6461478 A4C99333-FF4C-4857-9900-E3D743E03684 ERIMETOPINI TRIBE NOV. ( FIGS 1B 2 , 4A–L, 8C; TABLES 1–3 ) Zoobank registration: urn:lsid:zoobank.org:act: 61AF1486-7B40-4EC9-A244-6875EAD2C1CE . Diagnosis: Third maxilliped ischium smooth, lacking vertical sulcus; epibranchial tooth small, pointed; postfrontal crest distinct, completely traversing carapace. Etymology: Erimetopini is derived from a combination of the English words Congo and West, as a reference to the range of this tribe that includes an area that encompasses the Congo Basin and all of West Africa ( Fig. 8C ). The gender is masculine. Type genus: Erimetopus Rathbun, 1894 . G e n e r a i n c l u d e d: E r i m e t o p u s R a t h b u n, 1 8 9 4, Longipotamonautes ( Bott, 1955 ) stat. nov., Nesonautes gen. nov. and Occidensonautes gen. nov. Distribution: Erimetopini is found in West and Central Africa in the following countries: Erimetopus occurs in the Republic of the Congo and the D.R. Congo ( Fig. 9A ), Longipotamonautes occurs in Nigeria , Cameroon , the D.R. Congo , the Central African Republic , Gabon and the Republic of the Congo ( Fig. 9B ), Nesonautes is endemic to São Tomé Island ( Fig. 9C ) and Occidensonautes is found in West Africa from Senegal to Nigeria ( Fig. 9D ). Remarks: Each of the four genera in this tribe has been recovered as a well-supported lineage in the clade for Erimetopini ( Fig. 1B 2 ) and these relationships are also supported by other recent molecular studies of these taxa ( Daniels & Klaus, 2018 : fig. 1; Wood et al. , 2019 : fig. 1). The genera can be distinguished from each other by differences in the G1 TA ( Fig. 4A–L ; see key to genera above).