Zootaxa 4433 (3): 542–560 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2018 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4433.3.9 http://zoobank.org/urn:lsid:zoobank.org:pub:AD2CD33C-1E75-46C5-9EAF-2A1EC854E6E1 Luciobarbus lanigarensis and L. numidiensis, two new species of barbels from the Mediterranean Sea basin in North Africa (Teostei: Cyprinidae) AMINA BRAHIMI1,5, ROLAND LIBOIS1, ARNAUD HENRARD2,3 & JÖRG FREYHOF4 1Zoogeography Research Unit, Department of Biology, Ecology and Evolution, University of Liège, Chemin de la vallée 4 (Bât. B22) 4000 Sart Tilman, Belgium. E-mail:
[email protected];
[email protected] 2Earth and life Institute, Biodiversity research Center, UCL-17. 07. 04, Bâtiment Carnoy, Croix du Sud, 5, B-1348, Louvain-la-Neuve, Belgium. 3Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium. E-mail:
[email protected] 4Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587 Berlin, Germany. E-mail:
[email protected] 5Corresponding author. E-mail:
[email protected] Abstract Two new species of Luciobarbus are described from the Mediterranean Sea basin in Morocco and Algeria. Their mono- phyly and phylogenetic placement are resolved by molecular analyses using two mitochondrial markers (cyt b and D- loop). Luciobarbus lanigarensis, new species, from the Tafna River drainage in Algeria and Morocco, is distinguished by having orange fins, a great predorsal length (52–59% SL) and a very long pectoral fin (79–90% HL). Luciobarbus numi- diensis, new species, from the El-Kébir River drainage in Algeria, is distinguished by having a golden pectoral-fin margin, 43–47+1–3 lateral line scales and a very long anal-fin (19–23%).