Redescription of Pseudobenedenia lauriei Szidat 1965 (Monogenea: Capsalidae) from Notothenia neglecta in Laurie, Peterman, and South Orkney Islands, South Antarctica

Abstract

While reviewing museum collections of Pseudobenedenia Johnston, 1931, we found five deposited slides marked by Dr. Lothar Carlos Guillermo Szidat as Pseudobenedenia lauriei Szidat, 1965 from Notothenia neglecta Nybelin, 1951. We have removed the synonymization of Pseudobenedenia lauriei Szidat, 1965 as a junior synonym of Pseudobenedenia nototheniae Johnston, 1931 and restored its identity as a valid species that we redescribe herein. We added never-published data on the ovary, testes, bursa, haptor diameter, and egg of P. lauriei. As well, we added data on body size, measurements of sclerotized structures of haptor (accessory sclerites, anterior and posterior hamuli), oral suckers, pharynx and anterior hamulus to accessory sclerite ratio. A comparison of the measurements the presently recognized species of P. lauriei shows that it differs from all known species of Pseudobenedenia Johnston, 1931 and corresponds to the data of its original description. We provide photomicrographs of P. lauriei for the first time in addition to more informative line drawings of this species.