Stephanostomum lophii sp. nov. (Digenea: Acanthocolpidae) , intestinal parasite of Lophius piscatorius, with reference to seasonal fluctuations of metacercariae in intermediate second hosts (Gadidae)

Quinteiro, P.; Tojo, J.; Nunez, A.; Santamarina, MT.; Sanmartin, ML.

Journal of Fish Biology 42(3): 421-433


ISSN/ISBN: 0022-1112
DOI: 10.1111/j.1095-8649.1993.tb00345.x
Accession: 021799527

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We describe the adult and metacercaria of a new species of digenetic trematode, Streptanostomum lophii sp. nov., an intestinal parasite of the angler fish, Lophius piscatorius. The species is distinguished from the similar Stephanostomum kovalevi by the numerous peristomial spines in the latter and from S. baccatum by the oral sucker being larger than the ventral sucker and by the fact that the principal intermediate hosts are gadids, not pleuronectids as in the case of Stephanostomum baccatum. We also report the prevalence of S. lophii metacercariae in various potential angler fish prey species caught off the coast of Galicia (NW Spain).