Features of the first known association between Syllidae (Annelida, Polychaeta) and crustaceans
نویسندگان
چکیده
In this paper, we report the finding of a specimen of Haplosyllis (Polychaeta: Syllidae) living attached to the pleopod of a female of the pontoniin shrimp Platycaris latirostris Holthuis 1952, which, in turn, lives symbiotically with the scleractinian coral Galaxea astreata (Lamarck 1816) in the Vietnamese coasts of the South China Sea. This association is considered as ectoparasitic, being thus the single known between polychaetes and shrimps, but also between syllids and crustaceans in general. This mode of life strongly differs from that of the single currently accepted species of the genus, Haplosyllides floridana from Florida and Cuba (a strict sponge endosymbiont), thus casting some doubts on its synonymy with Syllis (Haplosyllis) aberrans (described from Vietnam).
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