Nepotilla powelli was created in 1956.
Ethmia powelli was created in 1988.
Eucalantica powelli was created in 2011.
Greya powelli was created in 1992.
Hellinsia powelli was created in 1996.
Nepotilla finlayi was created in 1937.
Nepotilla marmorata was created in 1909.
Nepotilla carinata was created in 1954.
Nepotilla microscopica was created in 1916.
Nepotilla vera was created in 1940.
Nepotilla nitidula was created in 1940.
Nepotilla excavata was created in 1906.
Nepotilla amoena was created in 1878.