Lernaeenicus ramosus (Copepoda: Pennellidae) parasitic on a perchlet, Chelidoperca hirundinacea (Perciformes: Serranidae), in Suruga Bay, central Japan, with a note on the first record of the copepod from a serranine fish

抄録

The pennellid copepod Lernaeenicus ramosus Kirtisinghe, 1956 is a parasite of perciform and blenniiform fishes in the Indo-West Pacific region. A metamorphosed female of the species was collected from a perchlet, Chelidoperca hirundinacea (Valenciennes, 1831), caught on the neritic continental shelf of Suruga Bay, central Japan. The copepod is almost exclusively a parasite of groupers (Epinephelus spp.) in the serranid subfamily Epinephelinae, but C. hirundinacea belongs to a different serranid subfamily Serraninae. The present collection of L. ramosus represents its first record from a serranine fish in the Indo-West Pacific region.