Ovalipes ocellatus was created in 1799.
Ovalipes catharus was created in 1843.
Ovalipes australiensis was created in 1968.
Cantao ocellatus was created in 1784.
Crenadactylus ocellatus was created in 1845.
Abantiades ocellatus was created in 1932.
Gymnothorax ocellatus was created in 1831.
leopardus pardalis
No, the wolf eel Anarrhichthys ocellatus is a fish, the wolf Canis lupis is a mammal.
Anguilla anguilla
Oscars (Astronotus ocellatus) are egg layers so if you only have one it can not produce young. So problem solved. Your Oscar is not going to have babies.
Oscars (Astronotus ocellatus) come originally from the Amazon area where the water is very pure and contains almost no salt at all. Adding salt to their water will do them no good but may well damage them.
They will change colors when they are hungry or stressed out. If they stay a light color for a day or more this could be the first sign of a disease though.