FB-64797 http://www.fishbase.org/summary/SpeciesSummary.php?id=64797 Animalia Chordata Teleostei Cypriniformes Psilorhynchidae Psilorhynchus Psilorhynchus rahmani Conway & Mayden, 2008 Halloween Darter 2008-12-15 2010-11-06 Freeman, M.C., B.J. Freeman, N.M. Burkhead and C.A. Straight0 A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963:25-42. (Ref. 79864) Dean, E.M., A.R. Cooper, L. Wang, W. Daniel, S. David, C. Ernzen, K.B. Gido, E Hale, T.J. Haxton, W. Kelso, N. Leonard, C. Lido, J. Margraf, M. Porter, C. Pennock, D. Propst, J. Ross, M.D. Staudinger, G. Whelan and D.M. Infante0 The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States of Mexico. J. Biogeography 49:1193-1203. (Ref. 126106) FB-GeneralDescr-64808 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-12-16 23:23:58 2025-12-12 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64808 Percina crypta inhabits relatively swiftly flowing areas over bedrock or a mixture of coarse (boulder to gravel) bed sediments (Hill 1996; Marcinek 2003). The species is frequently associated with the aquatic macrophyte Podostemum ceratophyllum (Marcinek 2003). All of our observations of P. crypta have been in shoal habitats, which contrasts markedly with the broader range of stream habitats (pools, runs and riffles) occupied by the co-occurring congener P. nigrofasciata (Ref. 79864). Migratory behaviour is undetermined (Ref. 126106). Freeman, M.C., B.J. Freeman, N.M. Burkhead and C.A. Straight 2008 A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963:25-42. (Ref. 79864) FB-DiagnosticDescr-64808 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-12-17 00:12:00 2008-12-17 00:12:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64808 Percina crypta differs from all other described species of Percina in possessing the following combination of characters: branchiostegal membranes slightly connected; preopercular margin non-serrate; premaxillary frenum well-developed; rectangular dorsal saddles usually seven, closely spaced; snout subconical,subocular bar prominent; and first-dorsal fin with yellow-orange to orange submarginal band in nuptial males and females. Nuptial males lack discrete tubercles, but exhibit tubercular ridges on the anal-fin rays and ventrally on pelvic rays. Lateral blotches rectangular, forming discrete blocks or bars, sometimes conjoinedwith dorsal saddles and tapering ventrally. Caudal-fin base with three vertically aligned spots or dashes that enclose two pale areas, middle mark may conjoin with small blotch at caudal base. Percina crypta is most readily distinguished from sympatric P. nigrofasciata in having narrowly separateddark dorsal saddles, pale inter-saddle width usually less than or rarely equal to saddle width versus pale intersaddle width usually greater than saddle width; width of last two dorsal saddles always greater than pale intersaddlespace versus width of last two dorsal saddles always less than inter-saddle space; usually a single modified scale between the pelvic bases versus two or more scales; and pectoral-fin rays strongly banded versus fins clear or pectoral rays lightly tessellated. Lateral pigmentation highly variable in P. nigrofasciata;lateral blotches may conjoin with dorsal saddles in large adults and frequently taper ventrally onto lower side; subocular bar variably present; and nuptial males may develop a pale submarginal yellow wash suffused with pale iridescent green in the first-dorsal fin (Ref. 79864). Freeman, M.C., B.J. Freeman, N.M. Burkhead and C.A. Straight 2008 A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963:25-42. (Ref. 79864) FB-Distribution-64808 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-12-16 23:42:17 2008-12-17 00:07:25 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64808 North America: USA. Percina crypta is endemic to the Apalachicola River drainage, where the species occurs in the Flint River system, Georgia, and the Chattahoochee River system, Alabama and Georgia (Ref. 79864). Freeman, M.C., B.J. Freeman, N.M. Burkhead and C.A. Straight 2008 A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963:25-42. (Ref. 79864) FB-TrophicStrategy-64808 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-12-17 00:06:06 2008-12-17 00:06:59 http://creativecommons.org/licenses/by-nc/3.0/ crypta Hill (1996) studied life history aspects of P. crypta in the upper Flint River system. Percina crypta in this population consumed aquatic insect larvae, including Diptera, Ephemeroptera and Trichoptera (Ref. 79864). Freeman, M.C., B.J. Freeman, N.M. Burkhead and C.A. Straight 2008 A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963:25-42. (Ref. 79864) FB-Size-64808 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-12-16 23:23:58 2025-12-12 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64808 7.3 cm SL (male/unsexed; (Ref. 79864)) Freeman, M.C., B.J. Freeman, N.M. Burkhead and C.A. Straight 2008 A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963:25-42. (Ref. 79864) 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-64808 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-12-16 23:23:58 2025-12-12 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64808 pelagic; freshwater