Actiniaria and Scleractinia (Cnidaria, Anthozoa) from the Adriatic Sea (Croatia): first records, confirmed occurrences and significant range extensions of certain species

Among the Anthozoa collected in recent years from Croatian waters, two species of Actiniaria and eight species of Scleractinia (from 21 stations) deserve special mention. Here we document the first records in the Adriatic Sea of the actiniarians Alicia mirabilis and Halcampoides purpurea and the scleractinians Coenocyathus cylindricus, Sphenotrochus andrewianus and Balanophyllia regia, while the previously uncertain occurrence in this part of the Mediterranean Sea is confirmed for the first time for the scleractinians; Caryophyllia cyathus, Coenocyathus anthophyllites, Dendrophyllia ramea and Astroides calycularis. Guynia annulata, previously recorded in the Adriatic only from the southern Italian coast near Bari, has been found on the Croatian coast as far north as Prvic Island.