Agnèse Jean-François auteur aut IRD Legros O. auteur aut IRD Cazaux B. auteur aut IRD Estivals G. auteur aut IRD text journalArticle eng text/pdf born digital access Aphyosemion pamaense 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 Chromaphyosemion 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. specialized systematics taxonomy molecular phylogeny karyotype sex-chromosomes CAMEROUN 034 3670 4 516-530 2013 1175-5326 https://www.documentation.ird.fr/hor/fdi:010059890 10.11646/zootaxa.3670.4.6 1175-5326 [F B010059890] https://www.documentation.ird.fr/hor/fdi:010059890 https://www.documentation.ird.fr/intranet/publi/depot/2013-09-05/010059890.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2013-07-29 2017-08-23 fdi:010059890 fre