Baicalellia evelinae Marcus, 1946 (original description)
Baicalellia opaca (Sibiriakova, 1929) Ruebush & Hayes, 1939 (additional source)
Bothromesostoma evelinae Marcus, 1946 (original description)
Castrada andreja Nasonov, 1919 accepted as Castrada (Castradella) granea Braun, 1885 (taxonomy source)
Curtisia schubarti Marcus, 1946 accepted as Girardia schubarti (Marcus, 1946) (original description)
Dalyellia erivanica (Plotnikow, 1906) Graff, 1905 accepted as Microdalyellia (Gieysztoria) erivanica (Plotnikow, 1906) Ruebush & Hayes, 1939 (status source)
Dalyellia quadridensoides (Fuhrmann, 1914) Marcus, 1946 accepted as Microdalyellia (Gieysztoria) quadridensoides (Fuhrmann, 1914) Ruebush & Hayes, 1939 accepted as Gieysztoria quadridensoides (Fuhrmann, 1914) Ruebush & Hayes, 1939 (new combination reference)
Dalyellia rossi Graff, 1911 accepted as Microdalyellia rossi (Graff, 1911) Gieysztor, 1938 (additional source)
Macrostomum evelinae Marcus, 1946 (original description)
Meidiama Marcus, 1946 (original description)
Meidiama lutheri Marcus, 1946 (original description)
Mesostoma bologoviense Plotnikow, 1906 accepted as Strongylostoma elongatum elongatum Hofsten, 1907 (source of synonymy)
Mesostoma bologoviense Plotnikow, 1906 accepted as Strongylostoma elongatum elongatum Hofsten, 1907 (additional source)
Mesostoma primitivum (Sabussowa, 1929) Marcus, 1946 (new combination reference)
Microdalyellia (Gieysztoria) acariaia Marcus, 1946 accepted as Gieysztoria acariaia Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) bellis Marcus, 1946 accepted as Gieysztoria bellis Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) cuspidata (Schmidt, 1861) Gieysztor, 1938 accepted as Gieysztoria cuspidata (Schmidt, 1861) Ruebush & Hayes, 1939 (additional source)
Microdalyellia (Gieysztoria) cypris Marcus, 1946 accepted as Gieysztoria cypris Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) evelinae Marcus, 1946 accepted as Gieysztoria evelinae Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) hymanae Marcus, 1946 accepted as Gieysztoria hymanae Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) intricata Marcus, 1946 accepted as Gieysztoria intricata Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) okugawai (Ruebush & Hayes, 1939) Marcus, 1946 accepted as Gieysztoria (Marcusiella) okugawai (Ruebush & Hayes, 1939) Marcus, 1946 (new combination reference)
Microdalyellia (Gieysztoria) therapaina Marcus, 1946 accepted as Gieysztoria therapaina Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) thymara Marcus, 1946 accepted as Gieysztoria (Marcusiella) thymara Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) tridesma Marcus, 1946 accepted as Gieysztoria tridesma Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) trisolena Marcus, 1946 accepted as Gieysztoria trisolena Marcus, 1946 (original description)
Microdalyellia (Gieysztoria) uncia Marcus, 1946 accepted as Gieysztoria uncia Marcus, 1946 (original description)
Microdalyellia okugawai Ruebush & Hayes, 1939 accepted as Gieysztoria (Marcusiella) okugawai (Ruebush & Hayes, 1939) Marcus, 1946 (additional source)
Microdalyellia rossi (Graff, 1911) Gieysztor, 1938 (additional source)
Microdalyellia sawayai Marcus, 1946 (original description)
Microdalyellia sillimani (Graff, 1911) Ruebush & Hayes, 1939 (additional source)
Minona Marcus, 1946 (original description)
Minona evelinae Marcus, 1946 (original description)
Olisthanella caeca Sibiriakova, 1929 (status source)
Olisthanella elegans Nasonov, 1919 (status source)
Olisthanella isaevi Nasonov, 1924 (status source)
Olisthanella multispina Beklemischev, 1924 (status source)
Olisthanella otophthalma tricuspidata Beklemischev, 1922 (status source)
Olisthanella parva Marcus, 1946 (original description)
Olisthanella tricirrata Sibiriakova, 1929 (status source)
Olisthanella truncula fusikorum Nasonov, 1929 (taxonomy source)
Olisthanella truncula lucida Nasonov, 1926 (taxonomy source)
Phaenocora bresslaui Marcus, 1946 (original description)
Phaenocora chloroxantha Marcus, 1946 (original description)
Phaenocora evelinae Marcus, 1946 (original description)
Phaenocora highlandense Gilbert, 1935 accepted as Phaenocora highlandensis Gilbert, 1935 (additional source)
Phaenocora highlandensis Gilbert, 1935 (basis of record)
Planaria ambigua Böhmig, 1902 accepted as Dugesia ambigua (Bohmig, 1902) accepted as Curtisia ambigua (Bohmig, 1902) (source of synonymy)
Sphagnella Sekera, 1912 (additional source)
Taborella Sekera, 1912 (additional source)

Brazil for Bopsula evelinae Marcus, 1946 
Brazil for Bopsula evelinae Marcus, 1946 
Brazil for Bothrioplana semperi Braun, 1881 
Brazil for Bothromesostoma evelinae Marcus, 1946 
Brazil for Curtisia schubarti Marcus, 1946 
Brazil for Curtisia schubarti Marcus, 1946 
Brazil for Curtisia schubarti Marcus, 1946 
Brazil for Curtisia schubarti Marcus, 1946 
Brazil for Gieysztoria bellis Marcus, 1946 
Brazil for Gieysztoria complicata (Fuhrmann, 1914) Ruebush & Hayes, 1939 
Brazil for Gieysztoria rubra (Fuhrmann, 1894) Ruebush & Hayes, 1939 
Brazil for Gieysztoria trisolena Marcus, 1946 
Brazil for Gieysztoria trisolena Marcus, 1946 
Brazil for Gyratrix hermaphroditus Ehrenberg, 1831 
Brazil for Gyratrix hermaphroditus Ehrenberg, 1831 
Brazil for Macrostomum delphax Marcus, 1946 
Brazil for Macrostomum delphax Marcus, 1946 
Brazil for Macrostomum delphax Marcus, 1946 
Brazil for Macrostomum delphax Marcus, 1946 
Brazil for Macrostomum delphax Marcus, 1946 
Brazil for Macrostomum delphax Marcus, 1946 
Brazil for Macrostomum delphax Marcus, 1946 
Brazil for Macrostomum evelinae Marcus, 1946 
Brazil for Meidiama lutheri Marcus, 1946 
Brazil for Mesostoma ehrenbergii (Focke, 1836) Örsted, 1843 
Brazil for Microdalyellia (Gieysztoria) acariaia Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) acariaia Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) bellis Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) cypris Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) evelinae Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) hymanae Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) hymanae Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) intricata Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) intricata Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) ornata (Hofsten, 1907) Gieysztor, 1938 
Brazil for Microdalyellia (Gieysztoria) ornata (Hofsten, 1907) Gieysztor, 1938 
Brazil for Microdalyellia (Gieysztoria) therapaina Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) thymara Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) thymara Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) tridesma Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) tridesma Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) tridesma Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) tridesma Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) tridesma Marcus, 1946 
Brazil for Microdalyellia (Gieysztoria) uncia Marcus, 1946 
Brazil for Microdalyellia sawayai Marcus, 1946 
Brazil for Microdalyellia sawayai Marcus, 1946 
Brazil for Minona evelinae Marcus, 1946 
Brazil for Olisthanella parva Marcus, 1946 
Brazil for Olisthanella parva Marcus, 1946 
Brazil for Olisthanella parva Marcus, 1946 
Brazil for Phaenocora bresslaui Marcus, 1946 
Brazil for Phaenocora bresslaui Marcus, 1946 
Brazil for Phaenocora bresslaui Marcus, 1946 
Brazil for Phaenocora bresslaui Marcus, 1946 
Brazil for Phaenocora chloroxantha Marcus, 1946 
Brazil for Phaenocora chloroxantha Marcus, 1946 
Brazil for Phaenocora evelinae Marcus, 1946 
Brazil for Phaenocora evelinae Marcus, 1946 
Brazil for Plagiostomum evelinae Marcus, 1946 
Brazil for Rhodax evelinae Marcus, 1946 
Brazil for Strongylostoma dicorymbum Marcus, 1946 
Brazil for Strongylostoma dicorymbum Marcus, 1946 

 Status

 for Sphagnella Sekera, 1912

Considered a taxon incertae sedis by Bresslau (1928–1933) and Marcus (1946) [details]

 Taxonomic remark

 for Castrada (Castradella) granea andreja Nasonov, 1919

This taxon only occurs in the Turbellarian Taxonomy database and is based on a remark of Marcus (1946: p.82) that ... [details]

 Taxonomic remark

 for Olisthanella caeca Sibiriakova, 1929

Marcus (1946) casts some doubts whether this species indeed belongs to Olisthanella [details]

 Taxonomic remark

 for Olisthanella elegans Nasonov, 1919

Marcus (1946) casts some doubts whether this species indeed belongs to Olisthanella [details]

 Taxonomic remark

 for Olisthanella isaevi Nasonov, 1924

Marcus casts some doubts whether this species indees belongs to Olisthanella [details]

 Taxonomic remark

 for Olisthanella multispina Beklemischev, 1924

Marcus (1946) casts some doubts whether this species indeed belongs to Olisthanella [details]

 Taxonomic remark

 for Olisthanella opistomiformis Nasonov, 1924

Marcus (1946) casts some doubts whether this species indeed belongs to Olisthanella [details]

 Taxonomic remark

 for Olisthanella palmeni Nasonov, 1917

Marcus (1946) casts some doubts whether this species indeed belongs to Olisthanella [details]

 Taxonomic remark

 for Olisthanella tricirrata Sibiriakova, 1929

Marcus (1946) casts some doubts whether this species indeed belongs to Olisthanella [details]