FB-68545 http://www.fishbase.org/summary/SpeciesSummary.php?id=68545 Animalia Chordata Teleostei Characiformes Acestrorhamphidae Hemigrammus Hemigrammus tupebas (Esguícero & Castro, 2017) 2018-01-04 2025-03-07 Carvalho, T.P., R.E. Reis and M.H. Sabaj0 Description of a new blind and rare species of <i>Xyliphius</i> (Siluriformes: Aspredinidae) from the Amazon basin using high-resolution computed tomography. Copeia 105(2):14-28. (Ref. 116022) FB-GeneralDescr-68554 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2018-01-11 00:00:00 2018-01-11 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68554 Inhabits river. Caught with a large floating net stretched between two canoes and dragged downstream through the water column (Ref. 116022). Carvalho, T.P., R.E. Reis and M.H. Sabaj 2017 Description of a new blind and rare species of <i>Xyliphius</i> (Siluriformes: Aspredinidae) from the Amazon basin using high-resolution computed tomography. Copeia 105(2):14-28. (Ref. 116022) FB-DiagnosticDescr-68554 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2018-01-11 00:00:00 2018-01-11 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68554 Xyliphius sofiae can be diagnosed from all its congeners by four autapomorphies: absence of eyes (vs. presence, though reduced); color pale, lack of pigment (vs. head and body darkly pigmented); 5 branchiostegal rays (vs. 4); and unculiferous tubercles on posterior body evenly distributed (vs. enlarged unculiferous tubercles typically arranged in five distinct rows from above pelvic-fin base to posterior end of caudal peduncle). It further differs by having one ossified proximal radial in the pectoral fin (vs. two in congeners, except X. magdalenae, not examined). It can be distinguished from all congeners except X. lepturusby having the snout tip elongated and narrowly rounded (vs. short and broadly rounded, often with small median notch), fifth ceratobranchial relatively narrow with two or three irregular rows of acicular teeth (vs. broadly expanded with larger conical teeth), anterior limits of the branchial apertures separated by a distance smaller than length of aperture (vs. greater than length of aperture), anal-fin rays modally nine (vs. seven), and lateral line extending onto base of caudal-fin rays (vs. finishing in hypural region) (Ref. 116022). Carvalho, T.P., R.E. Reis and M.H. Sabaj 2017 Description of a new blind and rare species of <i>Xyliphius</i> (Siluriformes: Aspredinidae) from the Amazon basin using high-resolution computed tomography. Copeia 105(2):14-28. (Ref. 116022) FB-Morphology-68554 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2018-01-11 00:00:00 2018-01-11 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68554 Dorsal spines (total): 1; Dorsal soft rays (total): 4; Analsoft rays: 9 Carvalho, T.P., R.E. Reis and M.H. Sabaj 2017 Description of a new blind and rare species of <i>Xyliphius</i> (Siluriformes: Aspredinidae) from the Amazon basin using high-resolution computed tomography. Copeia 105(2):14-28. (Ref. 116022) FB-Distribution-68554 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2018-01-11 00:00:00 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68554 South America: Amazon River in Peru. Carvalho, T.P., R.E. Reis and M.H. Sabaj 2017 Description of a new blind and rare species of <i>Xyliphius</i> (Siluriformes: Aspredinidae) from the Amazon basin using high-resolution computed tomography. Copeia 105(2):14-28. (Ref. 116022) FB-Size-68554 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2018-01-11 00:00:00 2018-01-11 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68554 4.4 cm SL (male/unsexed; (Ref. 116022)) Carvalho, T.P., R.E. Reis and M.H. Sabaj 2017 Description of a new blind and rare species of <i>Xyliphius</i> (Siluriformes: Aspredinidae) from the Amazon basin using high-resolution computed tomography. Copeia 105(2):14-28. (Ref. 116022) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=2 Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-68554 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2018-01-11 00:00:00 2018-01-11 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68554 demersal; freshwater