original description
Clark, A. H. (1917). A new starfish from the Magellanic Region. <em>Proceedings of the Biological Society of Washington.</em> 30: 7-8., available online at https://www.biodiversitylibrary.org/page/3334877 [details]
context source (Deepsea)
Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [details]
basis of record
Clark, A. M. (1996). An index of names of recent Asteroidea. <em>In: Jangoux, M.; Lawrence, J.M. (Ed.) Echinoderm Studies, volumes 2-6 . Balkema: Rotterdam, The Netherlands.</em> [details]
additional source
Danis, B. & Jangoux, M. (2006). The SCAR-MarBIN Register of Antarctic Marine Species: Asteroidea. World Wide Web electronic publication., available online at https://www.marinespecies.org/rams/ramsasteroidea.php [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
Holotype USNM 36976, geounit Argentina [details]
From editor or global species database
Description Complete original description as follows: "Five arms; R=29 mm; r=14 mm; R:r=2.1:1; superomarginals 17. This form agrees most minutely with O. elongatus (Sladen) from Kerguelen, Marion and Heard Islands excepting in having much shorter arms and no pseudopedicellariae. It will probably prove to be a Magellanic variety of that speices." [details]