A phylogenetic assessment ofPronoprymnaspp. (Digenea: Faustulidae) and Pacific and Antarctic representatives of the genusSteringophorusOdhner, 1905 (Digenea: Fellodistomidae), with description of a new species

Morphological and molecular data on Pseudozoogonoides ugui Shimazu, 1974 (Digenea: Microphalloidea: Zoogonidae) ex Pseudaspius hakonensis (Günther, 1877) and taxonomic problems in Zoogoninae genera

“…In our view, these questions arise because of fragmental and discrete data on general morphology and nucleotide sequences are available for representatives of previously mentioned taxa, and these data are not mutually complementary. In this respect we completely agree with the point of Sokolov et al (2021b). Final conclusions can be made after morphological and molecular data are revised simultaneously for respective trematode species from type localities and hosts.…”

“…Results of phylogenetic analysis based on the 28S rDNA sequence data set repeated the polyphyly for the family Faustulidae s. lato , as revealed in the previous studies (Sun et al , 2014; Cutmore et al , 2018; Sokolov et al , 2021b; Belousova et al , 2023). The polyphyly was expressed in the existing two distant clades of this family: the ‘microphalloid’ clade, which is closer to Microphalloidea, and the ‘gymnophalloid’ clade, which is closer to Gymnophalloidea.…”

“…De Montaudouin et al (2014) and later Cutmore et al (2018) provided conclusive evidence that Bacciger species from the ‘gymnophalloid’ clade are close to the type species Bacciger bacciger (Rudolphi, 1819) Nicoll, 1914 based on the ITS2 rDNA sequence data set. Sokolov et al (2021b) discussed in detail the polyphyletic genus Bacciger sensu lato , concluding that there are not enough molecular data to be representative for adequate phylogenetic analysis and taxonomical interpretations for both ‘gymnophalloid’ and ‘microphalloid’ clades of Faustlidae sensu lato. Nevertheless, Curran et al (2022) proposed a concept of taxonomical status incertae cedis for Bacciger lesteri Bray, 1982 within Microphalloidea, removing Bacciger sensu stricto and Pseudobacciger Nahhas & Cable, 1964 from the Faustulidae and transferring them to the Gymnophalloidea with status incertae cedis.…”

“…(Olson et al , 2003; Kremnev et al , 2023). Results of several phylogenetic studies based on molecular data show that Zoogonodae is non-monophyletic, but formed strongly supported monophyly with representatives of Faustulidae; the problem actively discussed and still unresolved (Hall et al , 1999; Sun et al , 2014; Sokolov et al , 2021a; 2021b).…”

The first modern morphological description of Cercaria pennata and molecular evidence of its synonymy with Pronoprymna ventricosa in the Black Sea

“…These trematodes have been recorded from the intestine of various species of marine shads in the Black Sea (Chulkova, 1939;Nikolaeva, 1963;Popjuk, 2009;Ozer et al, 2013), Azov Sea (Solonchenko, 1982), Mediterranean Sea (Bray, 2008), Pontic and Caspian Seas (Kurochkin, 1964;Kornijchuk & Barzegar, 2005;Youssefi et al, 2011), north-eastern Atlantic Ocean (Bray, 2008), Dnieper River (Komarova, 1964), and Severn and Rhine Rivers (Bray & Gibson, 1980). An adult specimen of P. ventricosa ex Alosa volgensis (Berg, 1913), used in phylogenetic analysis, was described from the delta of the Volga River and genotyped by Sokolov et al (2021).…”