Kroh, A.; Mooi, R. (2024). World Echinoidea Database.
Echinocyamus incertus H.L. Clark, 1914. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits./aphia.php?p=taxdetails&id=513230 on 2024-05-16
Marine Species Traits editorial board (2024). Marine Species Traits.
Echinocyamus incertus H.L. Clark, 1914. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=513230 on 2024-05-16