Scotura occidentalis was created in 2008.
Boletus occidentalis was created in 2007.
Linderiella occidentalis was created in 1923.
Ucides occidentalis was created in 1897.
Daphnia occidentalis was created in 1986.
Androsace occidentalis was created in 1813.
Pogonomyrmex occidentalis was created in 1865.
Megasoma occidentalis was created in 1963.
Cephalanthus occidentalis was created in 1753.
Bison occidentalis was created in 1898.
Emblemariopsis occidentalis was created in 1970.
Carex occidentalis was created in 1889.