“…These include: Baryancistrus
demantoides , Baryancistrus
beggini , Hemiancistrus
subviridis , Hypancistrus
contradens , Hypancistrus
furunculus , Hypancistrus
lunaorum , Leporacanthicus
cf.
galaxias, Leporacanthicus
triactis , Hypancistrus
vandragti , Peckoltia
lineola , Pseudolithoxus
tigris , and Pseudancistrus
pectegenitor (Armbruster 2008, Armbruster et al 2007, Lujan and Armbruster 2011, Lujan and Birindelli 2011, Lujan et al 2007, 2009, Werneke et al 2005). At least two other species have a disjunct distribution inclusive of the Ventuari River and the Caura River but are absent from intervening reaches of the Orinoco River main channel ( Limatulichthys
nasarcus , and Pseudolithoxus
anthrax ; Lujan and Birindelli 2011, Londoño-Burbano et al 2014), and in four of these instances there is strong morphological or molecular evidence that sister species are allopatrically distributed upstream vs. downstream of the confluence of the Orinoco and Atabapo/Guaviare/Inirida rivers.…”