Oddly enough, the name T-rex is its own scientific name. It's the abbreviation of the binomial name Tyrannosaurus rex and translates to "Tyrant lizard king" from latin.
Interesting fact: as it is the abbreviation of a scientific name, it should be written as "T. rex", not "T-Rex" or "T Rex."
Pan troglodytes
Acyrthosiphon lactucae
Ornithorhynchus anatinus
Equus calabaius
The scientific name is Mustela erminea
The scientific name for dragonflies is Odonata.
It's Latin name is Panthera pardus
There is no scientific name for Harry Potter.
It's Latin name is Panthera pardus
Varanus Komodensis
Dolphin: Delphinidae Delphis
Trex