Laminiscus n.g. (Monogenea: Gyrodactylidae) from capelin, Mallotus villosus (Müller), (Pisces: Osmeridae) in the northwest Atlantic with redescriptions of L . gussevi n. comb., Gyrodactyloides petruschewskii , and G . andriaschewi

• Published in: Canadian Journal of Zoology
• Main Authors: Pálsson, Jónbjörn, Beverley-Burton, Mary
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1983
• Subjects: Animal Science and Zoology; Ecology, Evolution, Behavior and Systematics; Zhukov; Northwest Atlantic
• Online Access: http://dx.doi.org/10.1139/z83-040; http://www.nrcresearchpress.com/doi/pdf/10.1139/z83-040

Three species of viviparous monogenea, Gyrodactyloides petruschewskii Bykhovskii, 1947, G. andriaschewi Bykhovskii and Polyanskii, 1953, and Laminiscus gussevi (Bykhovskii and Polyanskii, 1953) n. comb., from the gills of capelin, Mallotus villosus (Müller), taken in the northwest Atlantic and Icelandic waters are redescribed in order to provide a better understanding of the functional morphology of the haptor. Laminiscus n.g. is proposed with L. gussevi n. comb., which is transferred from Gyrodactyloides, as type-species. Laminiscus is distinguished by having a sclerotized plate which supports the haptor and in lacking the ventral suction disc and associated sclerites which characterize Gyrodactyloides. Two other species, which do not parasitize capelin, are included in Laminiscus: L. strelkowi (Bykhovskii and Polyanskii, 1953) n. comb., and L. dogiele (Zhukov, 1960) n. comb. An emended generic diagnosis for Gyrodactyloides is included. All three specific reports are new geographic records.