A zoarcid is any member of the family Zoarcidae, commmonly known as an eelpout.
There is no scientific name for just big fish.
The scientific name of the puffer fish is Tetraodontidae.
Erpetoichthys calabaricus is the scientific name for the reed fish
The scientific name for a clown fish is a amphiprioninae.
The scientific name for a puffer fish is Tetraodontidae.
The scientific name of tulingan fish is Scomberomorus spp.
The scientific name of Sankara fish is Lutjanus campechanus.
Fish
The scientific name of a janitor fish is Pterygoplichthys pardalis.
The scientific name of fish bisugo is Nemipterus japonicus.
The scientific name for a walleye fish is Sander vitreus.