Ten killifish species compared through exact Wikimedia Commons photographs of their fins, colours and markings. An editorial selection, not a scientific ranking. Compilation and adaptations offered under CC BY-SA 4.0. Source photographs retain their listed licenses. Preserve attribution, source links, license links and change notices when publishing. 1. File:Aphyosemion australe gold.jpg Alexander Prokoshev Required credit: Alexander Prokoshev CC BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/ https://commons.wikimedia.org/wiki/File:Aphyosemion_australe_gold.jpg Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 2. File:Fundulopanchax gardneri gardneri.JPG Alexander Prokoshev Required credit: Alexander Prokoshev CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0 https://commons.wikimedia.org/wiki/File:Fundulopanchax_gardneri_gardneri.JPG Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 3. File:Fundulopanchax sjostedti 'Niger Delta' male.png Andrewbogott Required credit: Andrewbogott CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0 https://commons.wikimedia.org/wiki/File:Fundulopanchax_sjostedti_'Niger_Delta'_male.png Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 4. File:Rachovii.jpg Cisamarc Required credit: Cisamarc CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0 https://commons.wikimedia.org/wiki/File:Rachovii.jpg Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 5. File:Nothobranchius guentheri.jpg Jokuyken15 Required credit: Jokuyken15 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://commons.wikimedia.org/wiki/File:Nothobranchius_guentheri.jpg Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 6. File:Nothobranchius_eggersi.png Violaine2, France Required credit: Violaine2, France CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/ https://commons.wikimedia.org/wiki/File:Nothobranchius_eggersi.png Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 7. File:Epiplatys annulatus.JPG Andrew Bogott Required credit: Andrew Bogott CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0 https://commons.wikimedia.org/wiki/File:Epiplatys_annulatus.JPG Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 8. File:Aplo male.jpg Marrabbio2 Required credit: Marrabbio2 CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0 https://commons.wikimedia.org/wiki/File:Aplo_male.jpg Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 9. File:Aplocheilus_panchax.jpg Sahat Ratmuangkhwang Required credit: Sahat Ratmuangkhwang CC BY 3.0 https://creativecommons.org/licenses/by/3.0 https://commons.wikimedia.org/wiki/File:Aplocheilus_panchax.jpg Changes: Uniform scaling without cropping; fitted into 9:16 with title and caption bars. 10. File:Kabrozubka dagetova - epiplatys dageti.jpg Mattus1990 Required credit: Mattus1990 CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0 https://commons.wikimedia.org/wiki/File:Kabrozubka_dagetova_-_epiplatys_dageti.jpg Changes: Cropped aquarium surroundings around the complete fish; uniform scaling into a 9:16 frame with title and caption bars.