''Nectriaster monacanthus'' is a species of

sea star Starfish or sea stars are Star polygon, star-shaped echinoderms belonging to the class (biology), class Asteroidea (). Common usage frequently finds these names being also applied to brittle star, ophiuroids, which are correctly referred to ...

in the family

Oreasteridae The Oreasteridae are a family of sea stars in the class Starfish, Asteroidea. Description and characteristics This family contains many species of regular starfishes with usually 5 arms around a stiff, convex and often brightly colored body. W ...

. It is the sole species in the genus ''Nectriaster''. It was first described by

Hubert Lyman Clark Hubert Lyman Clark (January 9, 1870 – July 31, 1947) was an American zoologist. He received the Clarke Medal from the Royal Society of New South Wales in 1947. A son of UMass Amherst president William Smith Clark, he spent more than 40 years ...

in 1916 as ''Mediaster monacanthus''.

References

Oreasteridae Animals described in 1916 Taxa named by Hubert Lyman Clark {{Asteroidea-stub