The taxonomic research of Jules Richard on Cladocera (Crustacea: Branchiopoda) and his collection at the National Museum of Natural History, U. S. A. Author Kotov, Alexey A. A. N. Severtsov Institute of Ecology and Evolution, Leninsky Prospect 33, Moscow 119071, Russia. Author Ferrari, Frank D. Department of Systematic Biology, National Museum of Natural History, Smithsonian Institution, Museum Support Center, 4210 Silver Hill Road, Suitland, MD 20746, USA. E-mail: ferrarif @ si. edu text Zootaxa 2010 2010-07-28 2551 1 37 64 https://biotaxa.org/Zootaxa/article/view/zootaxa.2551.1.2 journal article 10.11646/zootaxa.2551.1.2 1175-5326 5304719 20. Moinodaphnia mocquerysi Richard, 1892 Moinodaphnia Mocquerysi Richard 1892b, p. 222 –226, figs 7–8. Type locality. No specific locality reported. All samples of Richard (1892b) were taken "sur le territoire de Mayoumba (Congo français)", now Gabon . Richard's specimens. Females from samples DGF 851 and DGF 854 from “Fr. Eq. Africa” (no further information). Samples DGF 708 and DGF 883 from “Mayoumba. Congo , Fr. Eq. Africa” are not present in DGF ; these samples contained Moinodaphnia sp. according to identifications on this Frey’s card. Comments. Goulden (1968) regarded M . mocquerysi as a junior synonym of M. macleayi (King, 1853) described from Australia . If specimens of M. macleayi cannot be reconciled with those of M . mocquerysi , the latter name should restricted to populations from Gabon .