Let me start a bit lower:
Order -- Perciformes
(Sub-Order) -- Blenniodei
Family -- Blenniidae (also Chaenopsidae, Clinidae, Dactyloscopidae, et al)
Genus -- Ecsenius (also Ophioblennius, Salaria, Salarias, et al)
Species -- bicolor, bimaculatus, lineatus, midas, et al
All of the above have the higher taxonomical descriptions, as follows:
Kingdom -- Animalia
Phylum -- Chordata
Class -- Actinopterygii
So, that's really complicated and even more confused by the changes to taxonomy that israelnajar refers to, namely Life and Domain. Some of these names change yearly, when the relevant "experts" conference and re-describe based on more recent research and consensus.
Us common folk get no say.....