Kermadec triplefin Kern brook lamprey Kersin barbell Kessler's gudgeon Kessler's loach Kessler's sculpin Key anchovy Key blenny Key brotula Key goby Key silverside Key worm eel Keyhole angelfish Keyhole cichlid Khadary-whitefish Khaki flounder Khandalla minnow Khanka gudgeon Khanka spiny bitterling Khavalchor catfish Khavli barb Ki Utsuri Koi Kiamichi shiner Kibiti Lampeye Kibonde Kidako moray Kido's snailfish Kiener's silverside Kikambala nothobranch Kikokuryu Koi Kikori River Sole Kikusui Koi Killarney shad Killifish Kimberley archerfish Kimberley blenny Kimberley catfish Kimberley grunter Kimberley mogurnda Kimberley spangled perch Kin Cardinalfish Kin Kikokuryu Koi Kindia killi King angelfish King demoiselle King dory King gar King George whiting King goby King mackerel