noun
endemic species; indigenous species
Refers to a species that is native and restricted to a particular region or environment.
この島には多くの特産種が生息している。
Many endemic species inhabit this island.
Compound of 特産 (tokusan, 'special product') + 種 (shu, 'species'). The exact derivation is uncertain, but the term is used in biological contexts to refer to species unique to a region.