Karomo Karrer's whiptail Karut croaker Kashgarian loach Katavi mouthbrooder Kathala croaker Katherine's wrasse Katibasia insidiosa Kato's Fairy Wrasse Katrana Katrine's coralbrotula Kaup's arrowtooth eel Kaup's sole Kavirondo barb Kawakawa Kawarimono Koi Keelcheek bass Keeled mullet Keeled needlefish Keeley’s dragonet Keeling deepwater cardinalfish Keel-jawed needle fish Kei goby Kelee shad Keletaona's Goby Kellogg's scorpionfish Kelp bass Kelp clingfish Kelp greenling Kelp gunnel Kelp klipfish Kelp perch Kelp pipefish Kelp poacher Kelp rockfish Kelp sculpin Kelp snailfish Kelp weedfish Kelpfish Kemp's Ridley Sea Turtle Kenting sandperch Kentucky darter Kenyan chromis Keppi Kerala mystus Kerguelen sandpaper skate Kerguelen spiny plunderfish Kermadec rattail Kermadec scalyfin Kermadec spiny dogfish