Plagiostomula Westblad, 1956 (original description)
Plagiostomula vivipara Westblad, 1956 (original description)
Plagiostomum Schmidt, 1852 (additional source)
Plagiostomum cinctum Meixner, 1938 accepted as Plagiostomum album Hyman, 1938 (source of synonymy)

Croatian Exclusive Economic Zone for Acmostomum dioicum Metschnikoff, 1865 
Croatian Exclusive Economic Zone for Acmostomum dioicum Metschnikoff, 1865 
Croatian Exclusive Economic Zone for Acmostomum dioicum Metschnikoff, 1865 
Croatian Exclusive Economic Zone for Plagiostomum cinctum Meixner, 1938 
Croatian Exclusive Economic Zone for Plagiostomum filicauda Westblad, 1956 
Croatian Exclusive Economic Zone for Plagiostomum filicauda Westblad, 1956 
Croatian Exclusive Economic Zone for Plagiostomum striatum Westblad, 1956 
England for Plagiostomum cinctum Meixner, 1938 
England for Plagiostomum striatum Westblad, 1956 
English Channel for Acmostomum dioicum Metschnikoff, 1865 
English Channel for Plagiostomum girardi (Schmidt, 1857) 
Irish Sea for Plagiostomum cinctum Meixner, 1938 
Irish Sea for Plagiostomum girardi (Schmidt, 1857) 
Irish Sea for Plagiostomum koreni Jensen, 1878 
Irish Sea for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
Isle of Man for Acmostomum dioicum Metschnikoff, 1865 
Isle of Man for Plagiostomum koreni Jensen, 1878 
Isle of Man for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
Italy for Plagiostomum girardi (Schmidt, 1857) 
Italy for Plagiostomum whitmani Graff, 1911 
Myanmar for Plagiostomum birmanse Westblad, 1956 
Norwegian Exclusive Economic Zone for Acmostomum dioicum Metschnikoff, 1865 
Norwegian Exclusive Economic Zone for Acmostomum dioicum Metschnikoff, 1865 
Norwegian Exclusive Economic Zone for Acmostomum dioicum Metschnikoff, 1865 
Norwegian Exclusive Economic Zone for Plagiostomum anocelis Brandtner, 1934 
Norwegian Exclusive Economic Zone for Plagiostomum cinctum Meixner, 1938 
Norwegian Exclusive Economic Zone for Plagiostomum cinctum Meixner, 1938 
Norwegian Exclusive Economic Zone for Plagiostomum cinctum Meixner, 1938 
Norwegian Exclusive Economic Zone for Plagiostomum filicauda Westblad, 1956 
Norwegian Exclusive Economic Zone for Plagiostomum norvegicum (Karling, 1940) 
Norwegian Exclusive Economic Zone for Plagiostomum nostrum Westblad, 1956 
Norwegian Exclusive Economic Zone for Plagiostomum nostrum Westblad, 1956 
Norwegian Exclusive Economic Zone for Plagiostomum striatum Westblad, 1956 
Norwegian Exclusive Economic Zone for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
Norwegian Exclusive Economic Zone for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
Norwegian Exclusive Economic Zone for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
Norwegian Exclusive Economic Zone for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
Sweden for Acmostomum dioicum Metschnikoff, 1865 
Sweden for Plagiostomum anocelis Brandtner, 1934 
Sweden for Plagiostomum anocelis Brandtner, 1934 
Sweden for Plagiostomum anocelis Brandtner, 1934 
Sweden for Plagiostomum koreni Jensen, 1878 
Sweden for Plagiostomum nostrum Westblad, 1956 
Sweden for Plagiostomum striatum Westblad, 1956 
Sweden for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
United Kingdom for Acmostomum dioicum Metschnikoff, 1865 
United Kingdom for Acmostomum dioicum Metschnikoff, 1865 
United Kingdom for Plagiostomum cinctum Meixner, 1938 
United Kingdom for Plagiostomum cinctum Meixner, 1938 
United Kingdom for Plagiostomum filicauda Westblad, 1956 
United Kingdom for Plagiostomum girardi (Schmidt, 1857) 
United Kingdom for Plagiostomum koreni Jensen, 1878 
United Kingdom for Plagiostomum koreni Jensen, 1878 
United Kingdom for Plagiostomum koreni Jensen, 1878 
United Kingdom for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
United Kingdom for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
United Kingdom for Plagiostomum vittatum (Frey & Leuckart, 1847) Jenssen, 1878 
United Kingdom for Plagiostomum whitmani Graff, 1911 
United Kingdom for Plagiostomum whitmani Graff, 1911