Apache trout 
Arabian angelfish 
Arabian Picassofish 
Arc-eye hawkfish 
Arcfin Shrimpgoby 
Arctic Sand Lance 
Areolate grouper 
Argus grouper 
Arothon_stellatus 
Arothron reticularis 
Asian arowana 
Astronesthes gemmifer 
Astronesthes micropogon 
Atlantic Creolefish 
Atlantic flyingfish 
Atlantic goliath grouper 
Atlantic Rainbow Wrasse 
Atlantic salmon 
Atlantic spadefish 
Atlantic Stargazer 
Atlantic tarpon 
Atlantic wolffish 
Atoll butterflyfish 
Australian Long-finned Eel