Thread-like tentacles in the Mediterranean corals Paramuricea clavata and Corallium rubrum


PABLO J LOPEZ-GONZALEZ
LORENZO BRAMANTI
https://orcid.org/0000-0002-4872-840X
PABLO ESCRIBANO-ÁLVAREZ
MARIA-CARLA BENEDETTI
IRENE MARTÍNEZ-BARALDÉS
CÉSAR MEGINA
Résumé

The occurrence of modified tentacles (i.e. thread-like tentacles) in the Mediterranean octocorals Paramuricea clavata and Corallium rubrum is reported. Colonies of four species of Mediterranean gorgonians were maintained in aquarium conditions for more than 5 months. The development of thread-like tentacles has been observed only in two of the four species. The presence of modified tentacles in other cnidarians has been usually associated with defensive/aggressive behavior. Our observations showed that thread-like tentacles in P. clavata and C. rubrum can also be used for feeding.

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