New species of turbelliaria in the fauna of the Urals

A taxonomic review and revisions of Microstomidae (Platyhelminthes: Macrostomorpha)

“…[21]–Lipovka River falling into Lake Ilmen, 55°00′42′′ N, 60°09′20″ E; Lake Bol’shoe Miassovo, 55°10′39′′ N, 60°17′31″ E…”

“…giganteum is a larger species than M . lineare (8 zooid body length of ≥8.5 mm compared with 4–5 mm, respectively), without an elongated tail, adhesive papillae or pigmented eyespots, with a clearly visible esophagus, with pharyngeal glands restricted to the oral cavity only and with a three-part stylet [21, 105].…”

“…lineare ). Taken together, it is unsurprising that while there has been some recent studies of species diversity within Macrostomorpha in general (e.g., [7, 12–17]), taxonomic research within Microstomidae from even the last 50 years has been restricted to a very few articles [4, 18–21].…”

A taxonomic review and revisions of Microstomidae (Platyhelminthes: Macrostomorpha)

“…A fourth, M. giganteum, though separable based on morphological evidence, can easily be misidentiYied and has historically been challenged as a "safe species". However, M. giganteum is a larger species than M. lineare (8 zooid body length of ≥8.5 mm compared with 4-5 mm, respectively), without an elongated tail, adhesive papillae or pigmented eyespots, with a clearly visible esophagus, with pharyngeal glands restricted to the oral cavity only and with a three-part stylet (Kostenko 1988;Rogozin 2015).…”

“…recognition of M. hanatum, still listing M. giganteum as synonymous to M. lineare). Taken together, it is unsurprising that while there has been some recent studies of species diversity within Macrostomorpha in general (e.g., Schockaert 2014;Sun et al 2014;Janssen et al 2015;Fang et al 2016;Reyes & Brusa 2017;Lin et al 2017a, b;), taxonomic research within Microstomidae from even the last 50 years has been restricted to a very few articles (Faubel 1974(Faubel , 1984Rogozin 2015;Atherton & Jondelius 2018 a,b).…”