title: Aphyosemion pamaense, a new killifish species (Cyprinodontiformes: Nothobranchiidae) from Cameroon.
abstract: Aphyosemion panaense sp. nov. is described from the Pama River, a small tributary of the Nyong, in the surroundings of Pama, Cameroon. It belongs to the subgenus Chromaphyosenion Radda, 1971 and is distinguished from its relatives by a unique/diagnostic combination of characters: orange unpaired fins, an anal fin without spots, an orange throat and purple to blue-grey flanks. The new species is also genetically differentiated from all the other Chromaphyosemion species as revealed by mtDNA (cytochrome b) analysis and characterised by a unique karyotype showing tentative sex chromosomes with 2n=35 chromosomes in males versus 2n=36 in females.
authors.affiliation: Institut des Sciences de l'Evolution, ISEM, UMR-IRD 226, UMR-CNRS 5554, Case Courrier 63, Université Montpellier 2, 34095, Montpellier CEDEX 05, France.
authors.forename: Jean-Francois
authors.initials: JF
authors.lastname: Agnese
authors.forename: Olivier
authors.initials: O
authors.lastname: Legros
authors.forename: Benoite
authors.initials: B
authors.lastname: Cazaux
authors.forename: Guillain
authors.initials: G
authors.lastname: Estivals
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D002163:Cameroon; D003532:Cyprinodontiformes / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics / Q000254:growth & development; D004272:DNA, Mitochondrial / Q000235:genetics; D005260:Female; D008297:Male; D009929:Organ Size; D010802:Phylogeny
chemical_list: D004272:DNA, Mitochondrial