Luciobarbus chelifensis and L. mascarensis, two new species from Algeria (Teleostei: Cyprinidae) Author Brahimi, Amina Author Freyhof, Jörg Author Henrard, Arnaud Author Libois, Roland text Zootaxa 2017 4277 1 journal volume 32838 10.11646/zootaxa.4277.1.3 c3d12699-338e-45eb-a376-c0298240b67c 1175-5326 809010 58DE9D03-DE8D-4FEF-84FE-46D353AFB347 Key to species of Luciobarbus in the African Mediterranean and Sahara basins in Central Algeria and Tunisia 1a Barbels thick, rostral-barbel origin close to tip of snout............................................ L. guercifensis 1b Barbels thin, rostral-barbel origin clearly behind tip of snout.................................................... 2 2a Usually 49–51+1–3 lateral line scales; 7½–8½ scale rows below lateral line; dorsal-fin origin behind of vertical of pelvic-fin origin.................................................................................... L. biscarensis 2b Usually 41–47+1–3 lateral line scales; 4½–6½ scale rows below lateral line; dorsal-fin origin in front or above vertical of pel vic-fin origin......................................................................................... 3 3a Last unbranched dorsal-fin ray serrated along 2/3 of its length; anal-fin length 19–22% SL........................... 4 3b Last unbranched dorsal-fin ray serrated along almost its entire length; anal-fin length 16–19% SL...................... 7 4a Predorsal length 46–52% SL............................................................................. 5 4b Predorsal length 52–58% SL............................................................................. 6 5a Interorbital distance 36–39% HL; 41–43+1–2 lateral line scales.............................. Luciobarbus leptopogon 5b Interorbital distance 40–44% HL; 43–47+1–3 lateral line scales............................. Luciobarbus setivimensis 6a Distance between pelvic and anal-fin origins 21–24% SL; caudal peduncle 1.3–1.5 times longer than deep; usually 5, very- rarely 4 unbranched dorsal-fin rays...................................................... Luciobarbus yahyaouii 6b Distance between pelvic and anal-fin origins 24–29% SL; caudal peduncle 1.2–1.3 times longer than deep; 4 unbranched dor- sal-fin rays....................................................................... Luciobarbus mascarensis 7a Anal-fin base length 8–10% SL; 41–43+1–2 lateral line scales................................ Luciobarbus chelifensis 7b Anal-fin base length 6–8% SL; 43–47+1–3 lateral line scales................ Luciobarbus callensis / Luciobarbus rifensis