7982 Fluvitrygon signifer Hisig_m0.gif http://www.fishbase.org/images/species/Hisig_m0.gif http://www.fishbase.org/images/thumbnails/gif/tn_Hisig_m0.gif Roberts, T.R. Hisig_f0.gif http://www.fishbase.org/images/species/Hisig_f0.gif http://www.fishbase.org/images/thumbnails/gif/tn_Hisig_f0.gif Roberts, T.R. Hisig_u0.gif http://www.fishbase.org/images/species/Hisig_u0.gif http://www.fishbase.org/images/thumbnails/gif/tn_Hisig_u0.gif FAO