Species ID
OC-SP-0002812
Discovered
Phylum
Echinodermata
Species ID
OC-SP-0002812
Provisional Species Name
Perknaster sp_OCSSI_PRR_001
Lowest Valid Taxon Name in WoRMS
Perknaster
Lowest Known Rank
Genus
Status
Discovered
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Embargo
No
Kingdom
Animalia
Phylum
Echinodermata
Class
Asteroidea
Order
Valvatida
Family
Asterinidae
Genus
Perknaster
Date Identified
15/01/2026
Taxonomic Remarks
This specimen is white with black bands in the interradia, all around the body, being much lighter in the actinal surface, with soft brown colour. The armature of the different plates also differs from other species of the Perknaster genus.
Received All Minimal Data for Discovery
07/04/2026
Description of Material
Abactinal surface covered by tall paxillae, with 18–20 somewhat broad and short spinules, but not rounded or oval. The paxillae are very slender and reach the margin. Small madreporic plate, covered by paxillaes. There is a line of black paxillaes in each interradious area, from the margin to the disk, but it does not reach the center of this. Only the inferomarginal plates are distinguishable from the margin; these are rectangular and extend into the actinal area and, except in the interradii, are the only plates present before the ambulacrals. In the interradial center from the actinal surface, there is a row of 5 paxillae extending from the margin to the oral plate, followed by two on each side, with the number of paxillae decreasing progressively. These are composed of spinelets longer than those on the abactinal surface, arranged flattened against the surface, lying horizontally. Oval mouth plates with two parallel spines to the mouth, three more upper and finally other two at distal part. Adambulacral plates with two parallel spines to the furrow, three more upper, and 5 more vertically in the distal part of the plate. All with the same size and shape.
Distribution
Bellinghausen, South Atlantic Ocean
Scientific Name Authorship
PAMELA RIVADENEIRA
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