It's have been published on a Zoological Journal as it should be before register it on the ZooBank, and here is the ZooBank Nomenclatural Act: https://zoobank.org/NomenclaturalActs/e6c1b26a-4934-435c-874b-0606557e55d4
The paper you can read it here: https://www.researchgate.net/publication/369981811_Discovery_of_a_New_Species_of_Sea_Urchin_with_Morphological_Similarities_to_Arbacia_lixula_Echinodermata_Echinoidea_Arbaciidae_Inside_a_Sea_Cave_on_the_South-Eastern_Coast_of_Central_Greece |