Castrella (Castrella) bardeaui (Steinböck, 1926) Riedel, 1932 accepted as
Fulinskiella bardeaui (Steinböck, 1926) Gieysztor & Szynal, 1939 (additional source)
Dalyellia Fleming, 1822 (additional source)
Dalyellia (Scoparia) scoparia (Schmidt, 1858) Graff, 1905 accepted as
Dalyellia scoparia (Schmidt, 1858) Graff, 1905 (basis of record)
Dalyellia (Scopariella) Gieysztor, 1938 accepted as
Dalyellia Fleming, 1822 (original description)
Dalyellia benacensis Steinböck, 1932 accepted as
Dalyellia brevimana Beklemischev, 1921 accepted as
Microdalyellia brevimana (Beklemischev, 1921) Gieysztor, 1938 (source of synonymy)
Dalyellia hallezii (Graff, 1882) Graff, 1905 (status source)
Dalyellia nasonovi Fulinski & Szynal, 1933 accepted as
Microdalyellia brevimana (Beklemischev, 1921) Gieysztor, 1938 (source of synonymy)
Dalyellia penicilla (Braun, 1885) Graff, 1905 (additional source)
Dalyellia penicilla diminuta Gieysztor, 1929 (additional source)
Dalyellia tatrica Gieysztor, 1938 (original description)
Macrostomum catarractae Gieysztor, 1938 (original description)
Microdalyellia Gieysztor, 1938 (original description)
Microdalyellia (Gieysztoria) foreli (Hofsten, 1911) Gieysztor, 1938 accepted as
Gieysztoria foreli (Hofsten, 1911) Ruebush & Hayes, 1939 (new combination reference)
Microdalyellia (Gieysztoria) lugubris wigrensis Gieysztor, 1938 accepted as
Gieysztoria lugubris wigrensis (Gieysztor, 1938) Ruebush & Hayes, 1939 (original description)
Microdalyellia (Gieysztoria) ornata drozdovicensis (Fulinski, 1915) Gieysztor, 1938 accepted as
Microdalyellia ornata drozdowicensis (Fulinski, 1915) Gieysztor, 1938 (new combination reference)
Microdalyellia armigera (Schmidt, 1862) Gieysztor, 1938 (new combination reference)
Microdalyellia brevimana (Beklemischev, 1921) Gieysztor, 1938 (new combination reference)
Microdalyellia euchroa (Gieysztor, 1926) Gieysztor, 1938 accepted as
Gieysztoria euchroa (Gieysztor, 1926) Luther, 1955 (new combination reference)
Microdalyellia fairchildi (Graff, 1911) Gieysztor, 1938 (new combination reference)
Microdalyellia koiwi (Eggers, 1924) Gieysztor, 1938 accepted as
Gieysztoria koiwi (Eggers, 1924) Luther, 1955 (new combination reference)
Microdalyellia lutheri (Nasonov, 1917) Gieysztor, 1938 accepted as
Castrella (Nasonoviella) lutheri (Nasonov, 1917) Luther, 1955 (new combination reference)
Microdalyellia microphthalma (Vejdovsky, 1895) Gieysztor, 1938 (new combination reference)
Microdalyellia mollosovi (Nasonov, 1920) Gieysztor, 1938 (new combination reference)
Microdalyellia picta (Schmidt, 1848) Gieysztor, 1938 (new combination reference)
Microdalyellia picta toutriensis (Fulinski & Szynal, 1933) Gieysztor, 1938 accepted as
Microdalyellia picta (Schmidt, 1848) Gieysztor, 1938 (new combination reference)
Microdalyellia rossi (Graff, 1911) Gieysztor, 1938 (new combination reference)
Microdalyellia schmidtii (Graff, 1882) Gieysztor, 1938 (new combination reference)
Microdalyellia variospinosa (Fulinski & Szynal, 1933) Gieysztor, 1938 (new combination reference)
Microdalyellia wiszniewskii Gieysztor, 1938 accepted as
Gieysztoria cuspidata (Schmidt, 1861) Ruebush & Hayes, 1939 (original description)
Otoplana fluviatilis Gieysztor, 1938 accepted as
Pseudosyrtis fluviatilis (Gieysztor, 1938) (original description)
Poland for
Castrada (Castrada) armata (Fuhrmann, 1894)
Poland for
Castrella (Castrella) bardeaui (Steinböck, 1926) Riedel, 1932
Poland for
Castrella (Nasonoviella) lutheri (Nasonov, 1917) Luther, 1955
Poland for
Dalyellia tatrica Gieysztor, 1938
Poland for
Dochmiotrema limicola Hofsten, 1907
Poland for
Gieysztoria lugubris wigrensis (Gieysztor, 1938) Ruebush & Hayes, 1939
Poland for
Macrostomum catarractae Gieysztor, 1938
Poland for
Microdalyellia (Gieysztoria) foreli (Hofsten, 1911) Gieysztor, 1938
Poland for
Microdalyellia (Gieysztoria) lugubris wigrensis Gieysztor, 1938
Poland for
Microdalyellia (Gieysztoria) ornata (Hofsten, 1907) Gieysztor, 1938
Poland for
Microdalyellia koiwi (Eggers, 1924) Gieysztor, 1938
Poland for
Microdalyellia microphthalma (Vejdovsky, 1895) Gieysztor, 1938
Poland for
Microdalyellia wiszniewskii Gieysztor, 1938
Poland for
Opistomum tundrae Nasonov, 1923