Acanthostomum imbutiforme (Molin, 1859) Gohar, 1934 accepted as Timoniella imbutiforme (Molin, 1859) Brooks, 1980 accepted as Timoniella imbutiformis (Molin, 1859) Brooks, 1980 (redescription)
Anisocladium fallax (Rudolphi, 1819) Looss, 1902 (redescription)
Anisocoelium capitellatum (Rudolphi, 1819) Lühe, 1900 (redescription)
Aphanurus stossichii (Monticelli, 1891) Looss, 1907 (redescription)
Bacciger israelensis Fischthal, 1980 (redescription)
Bucephalus baeri Maillard & Saad-Fares, 1981 (redescription)
Derogenes latus Janiszewska, 1953 (redescription)
Deropristis inflata (Molin, 1859) Odhner, 1902 (redescription)
Diphterostomum brusinae (Stossich, 1888) Stossich, 1904 (redescription)
Genolopa ampullacea Linton, 1910 (redescription)
Haploporus benedenii (Stossich, 1887) Looss, 1902 (redescription)
Haplosplanchnus pachysomus (Eysenhardt, 1829) Looss, 1902 accepted as Haplosplanchnus pachysoma (Eysenhardt, 1829) Looss, 1902 (redescription)
Hemiurus luehei Odhner, 1905 (redescription)
Labratrema minimum (Stossich, 1887) Biagianti & Maillard, 1984 accepted as Bucephalus minimus (Stossich, 1887) Nicoll, 1914 (redescription)
Lecithochirium fusiforme Lühe, 1901 accepted as Lecithochirium grandiporum (Rudolphi, 1819) Lühe, 1901 (redescription)
Lepidauchen stenostoma Nicoll, 1913 (redescription)
Monascus filiformis (Rudolphi, 1819) Looss, 1907 (redescription)
Monorchis monorchis (Stossich, 1890) Looss, 1902 (redescription)
Parahemiurus merus (Linton, 1910) Manter, 1940 (redescription)
Pronoprymna ventricosa (Rudolphi, 1819) Poche, 1926 (redescription)
Prosorhynchus aculeatus Odhner, 1905 accepted as Skrjabiniella aculeata (Odhner, 1905) Issaitschikow, 1928 (redescription)
Prosorhynchus crucibulum (Rudolphi, 1819) Odhner, 1905 (redescription)
Saccocoelium obesum Looss, 1902 (redescription)
Stephanostomum bicoronatum (Stossich, 1883) Fuhrmann, 1928 (redescription)
Stephanostomum minutum (Looss, 1901) Manter, 1940 (redescription)
Tergestia laticollis (Rudolphi, 1819) Stossich, 1899 (redescription)

Spanish Exclusive Economic Zone for Aphanurus stossichii (Monticelli, 1891) Looss, 1907 
Spanish Exclusive Economic Zone for Centroderma spinosissima (Stossich, 1883) Lühe, 1901 
Spanish Exclusive Economic Zone for Diphterostomum brusinae (Stossich, 1888) Stossich, 1904 
Spanish Exclusive Economic Zone for Ectenurus lepidus Looss, 1907 
Spanish Exclusive Economic Zone for Labratrema minimum (Stossich, 1887) Biagianti & Maillard, 1984 
Spanish Exclusive Economic Zone for Lecithochirium fusiforme Lühe, 1901 
Spanish Exclusive Economic Zone for Lecithochirium musculus (Looss, 1907) Nasir & Diaz, 1971 
Spanish Exclusive Economic Zone for Lecithochirium rufoviride (Rudolphi, 1819) Lühe, 1901 
Spanish Exclusive Economic Zone for Lecithocladium excisum (Rudolphi, 1819) Lühe, 1901 
Spanish Exclusive Economic Zone for Mesometra orbicularis (Rudolphi, 1819) Lühe, 1901 
Spanish Exclusive Economic Zone for Monascus filiformis (Rudolphi, 1819) Looss, 1907 
Spanish Exclusive Economic Zone for Monorchis monorchis (Stossich, 1890) Looss, 1902 
Spanish Exclusive Economic Zone for Prosorhynchus aculeatus Odhner, 1905 
Spanish Exclusive Economic Zone for Prosorhynchus crucibulum (Rudolphi, 1819) Odhner, 1905 
Spanish Exclusive Economic Zone for Robphildollfusium fractum (Rudolphi, 1819) Paggi & Orecchia, 1963 
Spanish Exclusive Economic Zone for Saccocoelium obesum Looss, 1902 
Spanish Exclusive Economic Zone for Synaptobothrium caudiporum (Rudolphi, 1819) Looss, 1907 
Spanish part of the Mediterranean Sea - Western Basin for Anisocladium fallax (Rudolphi, 1819) Looss, 1902 
Spanish part of the Mediterranean Sea - Western Basin for Anisocoelium capitellatum (Rudolphi, 1819) Lühe, 1900 
Spanish part of the Mediterranean Sea - Western Basin for Bacciger israelensis Fischthal, 1980 
Spanish part of the Mediterranean Sea - Western Basin for Derogenes latus Janiszewska, 1953 
Spanish part of the Mediterranean Sea - Western Basin for Derogenes varicus (Müller, 1784) Looss, 1901 
Spanish part of the Mediterranean Sea - Western Basin for Genolopa ampullacea Linton, 1910 
Spanish part of the Mediterranean Sea - Western Basin for Hemiurus communis Odhner, 1905 
Spanish part of the Mediterranean Sea - Western Basin for Lepidauchen stenostoma Nicoll, 1913 
Spanish part of the Mediterranean Sea - Western Basin for Parahemiurus merus (Linton, 1910) Manter, 1940 
Spanish part of the Mediterranean Sea - Western Basin for Stephanostomum minutum (Looss, 1901) Manter, 1940 
Spanish part of the North Atlantic Ocean for Acanthostomum imbutiforme (Molin, 1859) Gohar, 1934 
Spanish part of the North Atlantic Ocean for Bucephalus baeri Maillard & Saad-Fares, 1981 
Spanish part of the North Atlantic Ocean for Deropristis inflata (Molin, 1859) Odhner, 1902 
Spanish part of the North Atlantic Ocean for Elstia stossichianum (Monticelli, 1892) Bray, 1984 
Spanish part of the North Atlantic Ocean for Haploporus benedenii (Stossich, 1887) Looss, 1902 
Spanish part of the North Atlantic Ocean for Haplosplanchnus pachysomus (Eysenhardt, 1829) Looss, 1902 
Spanish part of the North Atlantic Ocean for Hemiurus luehei Odhner, 1905 
Spanish part of the North Atlantic Ocean for Pronoprymna ventricosa (Rudolphi, 1819) Poche, 1926 
Spanish part of the North Atlantic Ocean for Steganoderma retroflexum (Molin, 1859) Manter, 1947 
Spanish part of the North Atlantic Ocean for Stephanostomum bicoronatum (Stossich, 1883) Fuhrmann, 1928 
Spanish part of the North Atlantic Ocean for Tergestia laticollis (Rudolphi, 1819) Stossich, 1899 
Spanish part of the North Atlantic Ocean for Wardula capitellata (Rudolphi, 1819) Poche, 1926