S.A Nateghi Shahrokni - Department of Marine Biology, Graduate school of Marine Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
S.M.B Nabavi - Department of Marine Biology, Graduate school of Marine Science and Technology, Khorramshahr University of Marine Science and Technology
S.M.R Fatemi - Department of Marine Biology, Graduate school of Marine Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
G.H Vosoughi - Department of Marine Biology, Graduate school of Marine Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran

Species identification is always important. Records of sea urchins and sand dollars species ‎‎(Echinodermata, Echinoidea) is given from Iranian waters. Nine Species of Echinoderms were ‎identified through the study. The species identification was made using morphological ‎characteristics and review of checklist key. Nine species were identified here, including ‎Echinometra mathaei, Prionocidaris baculosa, Temnopleurus toreumaticus, Echinothrix ‎calamaris, Clypeaster humilis, Echinodiscus auritus, Diadema setosum, Diadema savignyi and ‎Parasalenia gratiosa of which three species namely Echinothrix calamaris, Diadema savignyi ‎and Parasalenia gratiosa were new records to Persian Gulf.‎

Echinoderm, Sea urchin, Sand dollar, Persian Gulf