Nomenclature
original description
Sladen, W.P. (1883) The Asteroidea of H.M.S. <i>Challenger</i> Expedition, pt. 2. Astropectinidae. Journal of the Linnean Society of London, Zoology 17: 214-269., available online at http://biodiversitylibrary.org/page/31628552
page(s): 223 [details]
Other
context source (Deepsea)
Natural History Museum, London (NHM): Collections Management Database System. [details]
From editor or global species database
Synonymy A synonym according of P. caeruleus according to Madsen (1961) but treated as possibly valid by Mironov et al. (2023) [details]