Stöhr, S.; O’Hara, T.; Thuy, B. (Eds) (2021). World Ophiuroidea Database. Ophiura crassa Mortensen, 1936. Accessed through: De Broyer, C.; Clarke, A.; Koubbi, P.; Pakhomov, E.; Scott, F.; Vanden Berghe, E. and Danis, B. (Eds.) (2021) Register of Antarctic Marine Species at: http://www.marinespecies.org/rams/aphia.php?p=taxdetails&id=173631 on 2023-03-21
De Broyer, C.; Clarke, A.; Koubbi, P.; Pakhomov, E.; Scott, F.; Vanden Berghe, E. and Danis, B. (Eds.) (2023). Register of Antarctic Marine Species. Ophiura crassa Mortensen, 1936. Accessed at: https://www.marinespecies.org/rams/aphia.php?p=taxdetails&id=173631 on 2023-03-21
basis of recordClarke, A.; Johnston, N.M. (2003). Antarctic marine benthic diversity. <i>Oceanography and Marine Biology: an Annual Review</i>. 41: 47-114. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality