Ludwig, H. (1905). Asteroidea. <em>Memoirs of the Museum of Comparative Zoology at Harvard.</em> 32: vii-xii, 1-292+ plates., available online athttp://biodiversitylibrary.org/page/28866803 page(s): 198 [details]
Mah, C.L. (2025). World Asteroidea Database. Hymenaster gracilis Ludwig, 1905. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=369017 on 2025-06-04
Glover, A.G.; Higgs, N.; Horton, T. (2025). World Register of Deep-Sea species (WoRDSS). Hymenaster gracilis Ludwig, 1905. Accessed at: https://www.marinespecies.org/deepsea/aphia.php?p=taxdetails&id=369017 on 2025-06-04
original descriptionLudwig, H. (1905). Asteroidea. <em>Memoirs of the Museum of Comparative Zoology at Harvard.</em> 32: vii-xii, 1-292+ plates., available online athttp://biodiversitylibrary.org/page/28866803 page(s): 198 [details]
context source (Deepsea)Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online athttp://www.iobis.org/[details]
Present Inaccurate Introduced: alien Containing type locality