“…In some Hyphessobrycon spp., including H. igneus, males have hooks on the pelvic and anal fins (Lima & Moreira, 2003;Carvalho, 2006;Garcia-Alzate & Román-Valencia, 2008;Garcia-Alzate et al, 2010). In other Characidae species, males lack hooks on their fins (Bertaco & Carvalho, 2005;Garcia-Alzate & Román-Valencia, 2008), have hooks only on their anal fin (Bertaco et al, 2007;Garcia-Alzate & Román-Valencia, 2008;Carvalho, 2011), have hooks on three or more ( , 0-4; , 5-9; , 10-14; , 15-19; , >20) distinct fins (Bertaco & Malabarba, 2005;Garcia-Alzate & Román-Valencia, 2008;Miquelarena & López, 2010), or have hooks on all their fins (Miquelarena & López, 2006;Bertaco et al, 2007;Camelier & Zanata, 2014). The latter condition is the most unusual in the family (Miquelarena & López, 2006;Bertaco et al, 2007).…”