Allostoma austriacum (Graff, 1882) accepted as Allostoma durum (Fuhrmann, 1898) (source of synonymy)
Allostoma catinosum (Beklemischev, 1927) Mack Fira, 1974 (status source)
Allostoma pallidum f. pusillum Westblad, 1955 (original description)
Archimonocelis bathycola (Westblad, 1952) Karling, 1966 (additional source)
Cylindrostoma elongatum Levinsen, 1879 (status source)
Cylindrostoma gracilis Westblad, 1955 (original description)
Cylindrostoma lutheri Westblad, 1955 (original description)
Cylindrostoma monotrochum (Graff, 1882) Westblad, 1955 (source of synonymy)
Cylindrostoma triste (Graff, 1911) Jones, 1939 (status source)
Cylindrostoma tubiferum Westblad, 1955 accepted as Monoophorum tubiferum (Westblad, 1955) Karling, 1993 (original description)
Enterostomula austriacum Graff, 1882 accepted as Allostoma durum (Fuhrmann, 1898) (source of synonymy)
Enterostomula dura (Fuhrmann, 1898) accepted as Allostoma durum (Fuhrmann, 1898) (source of synonymy)
Enterostomum Claparède, 1861 (status source)
Enterostomum austriacum Graff, 1882 (status source)
Gonostomula Westblad, 1955 (original description)
Gonostomula anocelis Westblad, 1955 (original description)
Monoophorum durum Fuhrmann, 1898 accepted as Allostoma durum (Fuhrmann, 1898) (source of synonymy)
Monoophorum stiliferum Westblad, 1955 accepted as Einarhelmins stilifera (Westblad, 1955) (original description)
Pseudostomum gracilis Westblad, 1955 (original description)
Reisingeria Westblad, 1955 (original description)
Reisingeria hexoculatus Westblad, 1955 (original description)

Croatia for Allostoma pallidum f. pusillum Westblad, 1955 
Croatia for Allostoma pallidum f. pusillum Westblad, 1955 
Croatia for Allostoma pallidum f. pusillum Westblad, 1955 
Croatia for Allostoma pallidum f. pusillum Westblad, 1955 
Croatian Exclusive Economic Zone for Allostoma durum (Fuhrmann, 1898) 
Croatian Exclusive Economic Zone for Allostoma durum (Fuhrmann, 1898) 
Croatian Exclusive Economic Zone for Allostoma durum (Fuhrmann, 1898) 
Croatian Exclusive Economic Zone for Monoophorum striatum (Graff, 1878) Böhmig, 1890 
Croatian Exclusive Economic Zone for Monoophorum striatum (Graff, 1878) Böhmig, 1890 
Croatian Exclusive Economic Zone for Urastoma cyprinae (Graff, 1882) 
Croatian Exclusive Economic Zone for Urastoma cyprinae (Graff, 1882) 
England for Allostoma pallidum Beneden, 1861 
England for Prolecithoplana lutheri Karling, 1940 
England for Prolecithoplana lutheri Karling, 1940 
England for Pseudostomum klostermanni (Graff, 1874) 
Falkland Islands Exclusive Economic Zone for Allostoma durum (Fuhrmann, 1898) 
Falkland Islands Exclusive Economic Zone for Allostoma durum (Fuhrmann, 1898) 
Finnish Exclusive Economic Zone for Gonostomula anocelis Westblad, 1955 
Iceland for Aphanostoma macrobursalium Westblad, 1946 
Isle of Man for Allostoma durum (Fuhrmann, 1898) 
Norwegian Exclusive Economic Zone for Allostoma durum (Fuhrmann, 1898) 
Norwegian Exclusive Economic Zone for Allostoma durum (Fuhrmann, 1898) 
Norwegian Exclusive Economic Zone for Cylindrostoma fingalianum (Claparède, 1861) 
Norwegian Exclusive Economic Zone for Cylindrostoma fingalianum (Claparède, 1861) 
Norwegian Exclusive Economic Zone for Cylindrostoma fingalianum (Claparède, 1861) 
Norwegian Exclusive Economic Zone for Cylindrostoma gracilis Westblad, 1955 
Norwegian Exclusive Economic Zone for Cylindrostoma gracilis Westblad, 1955 
Norwegian Exclusive Economic Zone for Cylindrostoma lutheri Westblad, 1955 
Norwegian Exclusive Economic Zone for Cylindrostoma lutheri Westblad, 1955 
Norwegian Exclusive Economic Zone for Cylindrostoma lutheri Westblad, 1955 
Norwegian Exclusive Economic Zone for Cylindrostoma lutheri Westblad, 1955 
Norwegian Exclusive Economic Zone for Cylindrostoma tubiferum Westblad, 1955 
Norwegian Exclusive Economic Zone for Pseudostomum arenarium Meixner, 1938 
Norwegian Exclusive Economic Zone for Pseudostomum klostermanni (Graff, 1874) 
Scandinavia for Allostoma pallidum Beneden, 1861 
Sweden for Allostoma durum (Fuhrmann, 1898) 
Sweden for Allostoma durum (Fuhrmann, 1898) 
Sweden for Cylindrostoma fingalianum (Claparède, 1861) 
Sweden for Cylindrostoma fingalianum (Claparède, 1861) 
Sweden for Cylindrostoma gracilis Westblad, 1955 
Sweden for Cylindrostoma gracilis Westblad, 1955 
Sweden for Cylindrostoma gracilis Westblad, 1955 
Sweden for Gonostomula anocelis Westblad, 1955 
Sweden for Gonostomula anocelis Westblad, 1955 
Sweden for Gonostomula anocelis Westblad, 1955 
Sweden for Prolecithoplana lutheri Karling, 1940 
Sweden for Prolecithoplana lutheri Karling, 1940 
Sweden for Prolecithoplana lutheri Karling, 1940 
Sweden for Prolecithoplana lutheri Karling, 1940 
Sweden for Prolecithoplana lutheri Karling, 1940 
Sweden for Pseudostomum arenarium Meixner, 1938 
Sweden for Pseudostomum arenarium Meixner, 1938 
Sweden for Pseudostomum gracilis Westblad, 1955 
Sweden for Reisingeria hexoculatus Westblad, 1955 
Sweden for Reisingeria hexoculatus Westblad, 1955 
United Kingdom for Allostoma durum (Fuhrmann, 1898) 
United Kingdom for Allostoma pallidum Beneden, 1861 
United Kingdom for Allostoma pallidum Beneden, 1861 
United Kingdom for Allostoma pallidum Beneden, 1861 
United Kingdom for Allostoma pallidum Beneden, 1861 
United Kingdom for Allostoma pallidum Beneden, 1861 
United Kingdom for Allostoma pallidum Beneden, 1861 
United Kingdom for Cylindrostoma fingalianum (Claparède, 1861) 
United Kingdom for Cylindrostoma fingalianum (Claparède, 1861) 
United Kingdom for Cylindrostoma monotrochum (Graff, 1882) Westblad, 1955 
United Kingdom for Cylindrostoma monotrochum (Graff, 1882) Westblad, 1955 
United Kingdom for Monoophorum stiliferum Westblad, 1955 
United Kingdom for Monoophorum stiliferum Westblad, 1955 
United Kingdom for Monoophorum stiliferum Westblad, 1955 
United Kingdom for Pseudostomum arenarium Meixner, 1938 
United Kingdom for Pseudostomum klostermanni (Graff, 1874) 

 Taxonomic remark

 for Cylindrostoma elongatum Levinsen, 1879

According to Westblad (1955: p. 513) this species could be synonymous with Allostoma pallida Beneden, 1861. [details]

 Taxonomic remark

 for Cylindrostoma triste (Graff, 1911) Jones, 1939

Westblad (1905) mentions the name as a possible synonym of C. fingilianum. [details]

 Validity

 for Allostoma catinosum (Beklemischev, 1927) Mack Fira, 1974

Was considered doubtful, and possibly a synonym of A. pallidum by Westblad (1955) [details]