title: Geophagus crocatus, a new species of geophagine cichlid from the Berbice River, Guyana, South America (Teleostei: Cichlidae).
abstract: We describe a new Geophagus from the Berbice River of Guyana, bringing the total number of described species in the genus to 19, and of Guianese species to six.. Geophagus crocatus, new species, is distinguished from all species of Geophagus outside of the G. surinamensis group by the presence of an incomplete suborbital stripe (vs. complete), and the presence of six lateral bars, with bars 2 and 3 slightly sloping toward each other and fusing dorsally at the base of the dorsal fin. Geophagus crocatus is the only Geophagus species known from the Berbice River, and it is present above and below the Itabru Falls.
authors.affiliation: Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, Ontario M5S 3B2, Canada.; Email: frances.hauser@mail.utoronto.ca.
authors.forename: Frances E
authors.initials: FE
authors.lastname: Hauser
authors.affiliation: Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, Ontario M5S 3B2, Canada Department of Natural History, Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada; Email: hernanl@rom.on.ca.
authors.forename: Hernán
authors.initials: H
authors.lastname: López-Fernández
mesh_terms: D000818:Animals; D023681:Cichlids / Q000033:anatomy & histology* / Q000145:classification* / Q000502:physiology; D003710:Demography; D006172:Guyana; D013045:Species Specificity