Synonymised taxa: 

Antedon bigradata Hartlaub, 1895

Distribution: 

This species has been collected in the Gulf of Panama (USNM E 51600; Centroid Latitude: 7.467, Centroid Longitude: -79.200), eastern Pacific, from a depth range of 741 to 823 m.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith