Diminutive worm eel Dinah's goby Dinnawah snowtrout Diogenes lanternfish Diphasic goby Dirty ordure snapper Disalvo's goby Disco blenny Discus ray Discus tetra Disk tetra Disparate angel shark Distant clingfish Distant goby Divine dwarfgoby Dixie chub Dnieper barbel Dnieper chub Docked snailfish Doctorfish Doderlein's Wrasse Doederlein's cardinalfish Dofleini's lantern fish Dog snapper Dogface witch eel Dogface witch-eel Dogteeth weakfish Dogtooth grenadier Dogtooth grouper Dogtooth herring Dogtooth lampfish Dogtooth pearlfish Dogtooth rivulus Dogtooth tuna Dog-toothed cardinalfish Dogtoothed flathead Doitsu Koi Dollar sunfish Dollfus' stargazer Dolly varden Dolphin cichlid Dolphin snailfish Domine Dominican gambusia Domino skate Don gudgeon Don tadpole-goby Don whitefin gudgeon Donets ruffe Dongu snowtrout