Astrotorhynchinae Graff, 1905 accepted as Paramesostominae Luther, 1948 (source of synonymy)
Beklemischeviella Luther, 1943 (subsequent type designation)
Ceratopera Den Hartog, 1964 (original description)
Ceratopera axi (Riedl, 1954) Den Hartog, 1964 (new combination reference)
Ceratopera flabellifera (Levinsen, 1879) Den Hartog, 1964 (new combination reference)
Ceratopera gracilis (Graff, 1882) Den Hartog, 1964 (new combination reference)
Ceratopera levinseni Den Hartog, 1964 accepted as Ceratopera flabellifera (Levinsen, 1879) Den Hartog, 1964 (basis of record)
Ceratopera paradoxa (Pereyaslawzewa, 1892) Den Hartog, 1964 (new combination reference)
Ceratopera reisingeri (Riedl, 1959) Den Hartog, 1964 (new combination reference)
Ceratopera sellai (Steinböck, 1933) Den Hartog, 1964 (new combination reference)
Ceratopera steinboecki (Riedl, 1959) Den Hartog, 1964 (new combination reference)
Promesostomidae Graff, 1882 (status source)
Proxenetes tuberculatus Graff, 1882 accepted as Ptychopera tuberculata (Graff, 1882) Den Hartog, 1964 (taxonomy source)
Proxenetinae Graff, 1882 accepted as Trigonostominae Graff, 1905 accepted as Trigonostomidae Graff, 1905 (source of synonymy)
Ptychopera Den Hartog, 1964 (original description)
Ptychopera hartogi Ax, 1971 (original description (unavailable nomenclaturally))
Ptychopera plebeia (Beklemischev, 1927) Den Hartog, 1964 (new combination reference)
Ptychopera tuberculata (Graff, 1882) Den Hartog, 1964 (taxonomy source)
Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 (new combination reference)

Baltic sea for Beklemischeviella contorta (Beklemischev, 1927) Luther, 1943 
Dutch Exclusive Economic Zone for Monocelis lineata (Müller, 1773) Oersted, 1843 
Dutch Exclusive Economic Zone for Proxenetes puccinellicola Ax, 1960 
Dutch Exclusive Economic Zone for Ptychopera tuberculata (Graff, 1882) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
Dutch Exclusive Economic Zone for Vejdovskya halileimonia Ax, 1960 
Gulf of Finland for Beklemischeviella contorta (Beklemischev, 1927) Luther, 1943 
Sweden for Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 
United Kingdom for Archilopsis unipunctata (Fabricius, 1826) 
United Kingdom for Baicalellia brevituba (Luther, 1918) Nasonov, 1930 
United Kingdom for Beklemischeviella contorta (Beklemischev, 1927) Luther, 1943 

 Taxonomic remark

 for Ceratopera levinseni Den Hartog, 1964

Graff (1882) considers this species to be identical to Proxenetes flabellifer Jensen, 1878. Den Hartog (1964: p. ... [details]