Vasilis STERGIOS le 24/05/21
Spotted foraging in the shallows of Kalamos beach, Evia island, Greece (Aegean sea). Appears to be a juvenile (disc diameter about 20cm). In this shot it is surrounded by pieces of broken and decaying poseidonia seagrass.
Frédéric ANDRÉ le 25/05/21
Merci Vasilis et Roberto pour votre aide : une nouvelle fiche DORIS proposée, Raja radula Delaroche, 1809.
Vasilis STERGIOS le 24/05/21
@Frédéric ANDRÉ @Roberto PILLON , thank you both for your quick replies! I will agree with Roberto on this one, due to the two large spots that are partially visible on its back. This has to be a Raja Radula which is in the ICUN red list
https://www.iucnredlist.org/species/161339/1652798...
also
Roberto PILLON le 24/05/21
Il est Raja radula.