On the occurrence of Ascorhynchus castelli (Dohrn, 1881) (Arthropoda: Pycnogonida) in the Aegean Sea

Sampling studies in the Turkish Aegean Sea revealed the occurrence of a sea spider species, Ascorhynchus castelli (Dohrn, 1881). The presence of this species is reported for the first time from the Aegean Sea and the second time from the eastern Mediterranean Sea. This record further extends the known distribution of the species from the Turkish Mediterranean Sea to the Aegean Sea in the eastern Mediterranean. This is also the first record of the species from shallow waters in the eastern Mediterranean Sea (10 m).