FB-67227 http://www.fishbase.org/summary/SpeciesSummary.php?id=67227 Animalia Chordata Teleostei Characiformes Stevardiidae Monotocheirodon Monotocheirodon kontos Menezes, Weitzman & Quagio-Grassiotto, 2013 2014-01-08 2014-01-09 Marinho, M.M.F., D.A. Bastos and N.A. Menezes0 New species of miniature fish from Marajó Island, Pará, Brazil, with comments on its relationships (Characiformes: Characidae). Neotrop. Ichthyol. 11(4):739-746. (Ref. 94718) FB-GeneralDescr-67236 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2014-01-11 00:00:00 2014-01-11 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67236 Collected from temporary streams, drying completely during the dry season (September to February) and flowing on the rainy season (March to August). Small groups of adults were found on the bottom and marginal portions of the streams in April. Juveniles in large schools were collected along the bottom of the stream in August (Ref. 94718). Marinho, M.M.F., D.A. Bastos and N.A. Menezes 2013 New species of miniature fish from Marajó Island, Pará, Brazil, with comments on its relationships (Characiformes: Characidae). Neotrop. Ichthyol. 11(4):739-746. (Ref. 94718) FB-DiagnosticDescr-67236 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2014-01-11 00:00:00 2014-01-11 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67236 This species differs from all members of the genus Tyttobrycon by the possession of tricuspid premaxillary teeth, tri- or pentacuspid maxillary teeth and four broad tricuspid anterior dentary teeth (vs. all teeth conical in the jaws). It can be further diagnosed from all congeners, except T. dorsimaculatus, by having 5-7 premaxillary teeth (vs. 8-9), and from T. dorsimaculatus by having only scattered melanophores on the dorsal fin (vs. dorsal fin with a conspicuous black spot). The presence of adipose fin separates this species from T. hamatus and T. spinosus (vs. adipose fin absent) (Ref. 94718).Description: Dorsal-fin rays ii,8-9; anal-fin rays iii-iv,12-14; pectoral-fin rays i,8-10; pelvic-fin rays i,7; 3 longitudinal scale rows below lateral line at pelvic-fin origin; 28- 31longitudinal scale row, including pored scales (Ref. 94718). Marinho, M.M.F., D.A. Bastos and N.A. Menezes 2013 New species of miniature fish from Marajó Island, Pará, Brazil, with comments on its relationships (Characiformes: Characidae). Neotrop. Ichthyol. 11(4):739-746. (Ref. 94718) FB-Morphology-67236 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2014-01-11 00:00:00 2014-01-11 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67236 Dorsal soft rays (total): 1011; Vertebrae: 31 - 33 Marinho, M.M.F., D.A. Bastos and N.A. Menezes 2013 New species of miniature fish from Marajó Island, Pará, Brazil, with comments on its relationships (Characiformes: Characidae). Neotrop. Ichthyol. 11(4):739-746. (Ref. 94718) FB-Distribution-67236 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2014-01-11 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=67236 South America: Marajó Island, Brazil. Marinho, M.M.F., D.A. Bastos and N.A. Menezes 2013 New species of miniature fish from Marajó Island, Pará, Brazil, with comments on its relationships (Characiformes: Characidae). Neotrop. Ichthyol. 11(4):739-746. (Ref. 94718) FB-TrophicStrategy-67236 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2014-01-11 00:00:00 2014-01-11 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ marajoara Collected from temporary streams, drying completely during the dry season (September to February) and flowing on the rainy season (March to August). Small groups of adults were found on the bottom and marginal portions of the streams in April. Juveniles in large schools were collected along the bottom of the stream in August. Other species collected together with Tyttobrycon marajoara were Aequidens tetramerus (Heckel), Apistogramma agassizii (Steindachner), Acaronia nassa (Heckel), Bryconops melanurus (Bloch), Copella arnoldi (Regan), Crenuchus spilurus Günther, Curimatopsis crypticus Vari, Hemigrammus levis Durbin, Hemigrammus ocellifer (Steindachner), Hemigrammus rhodostomus Ahl, Hemigrammus rodwayi Durbin, Hoplerythrinus unitaeniatus (Spix & Agassiz), Hoplias malabaricus (Bloch), Hyphessobrycon heterorhabdus (Ulrey), Megalechis sp., Microcharacidium weitzmani Buckup, Moenkhausia collettii (Steindachner), Nannostomus eques Steindachner, Nannostomus nitidus Weitzman, Pyrrhulina sp. and Rivulus sp. (Ref. 94718). Marinho, M.M.F., D.A. Bastos and N.A. Menezes 2013 New species of miniature fish from Marajó Island, Pará, Brazil, with comments on its relationships (Characiformes: Characidae). Neotrop. Ichthyol. 11(4):739-746. (Ref. 94718) FB-Size-67236 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2014-01-11 00:00:00 2014-01-11 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67236 2.1 cm SL (male/unsexed; (Ref. 94718)) Marinho, M.M.F., D.A. Bastos and N.A. Menezes 2013 New species of miniature fish from Marajó Island, Pará, Brazil, with comments on its relationships (Characiformes: Characidae). Neotrop. Ichthyol. 11(4):739-746. (Ref. 94718) 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-67236 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2014-01-11 00:00:00 2014-01-11 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67236 benthopelagic; freshwater