Merrifieldia chordodactylus was created in 1859.
Merrifieldia hedemanni was created in 1896.
Merrifieldia probolias was created in 1891.
Merrifieldia huberti was created in 1999.
Merrifieldia caspius was created in 1870.
Merrifieldia alaica was created in 1920.
Merrifieldia semiodactylus was created in 1855.
Merrifieldia nigrocostata was created in 1997.
Merrifieldia particiliata was created in 1908.
Merrifieldia diwani was created in 1981.
Merrifieldia calcarius was created in 1870.
Merrifieldia cana was created in 1990.
Merrifieldia brandti was created in 1981.