Regular Readers May Have Noticed,

that wherever possible after giving the English name for a fish/bird/plant,

I then put the scientific name in brackets and italics, for instance above is our Royal Gramma, (Gramma loreto), the first part of it's scientific name is usually made up of its genus followed by its species, like Homo sapiens, a tautonym is a species name in which the genus and species is the same, like the rat, (Rattus rattus), to the casual reader, a tautonym implies that this is the first one discovered in a new genus, or else the most common species in that genus,

that may or may not be true. When variations of a species are discovered, another name can be appended to designate the subspecies. If that subspecies name is the same as the other two names, you get a triple tautonym, like Bison bison bison, a couple of triple tautonyms that spring to mind are giraffe and gorilla, but there is not as many as you might think, a quick look at Wikipedia list just 21, there may be more, if you want to look!