Bioacoustics of Lernanthropus gisleri

Distribution: Lernanthropus gisleri is primarily a parasite of sciaenid fishes and was originally described from European waters (van Beneden, 1852 ). It has since been widely reported from both sides of the North Atlantic and in the Mediterranean Sea ( Table 3 ). It was first reported from Australian waters by Kabata (1979a) who examined two lots of Lernanthropus in the collections of the University of Adelaide, one labelled from “Port Willunga” and the other “probably New South Wales”, and identified them as L. gisleri . The hosts were Argyrosomus japonicus (as Sciaena antarctica Castelnau ) and Selenotoca multifasciatus (Richardson, 1846) (as Scatophagus multifasciatus ). Kabata (1979a) did not provide any description based on his Australian material, instead referring to his redescription of L. gisleri in Kabata (1979b) which was based on specimens collected from Scotland . As noted above, L. gisleri has also been reported from Japan on Sciaena sp. ( Yamaguti, 1936 ) and from China on Johnius dussumieri (as Sciaena dussumieri ) ( Song & Chen, 1976 ). Koyuncu et al . (2012) considered that Yamaguti’s (1936) report of L. gisleri was based on a misidentification and that his material “does not belong to L. gisleri ”. They concluded that “his specimen probably represents a new species”. On the basis of the brief description provided by Yamaguti (1936) his Japanese material is here re-identified as L. elegans sp. nov . , described above.