Amalosoma Fisher, 1948 (basis of record)
Amalosoma eddystonense Stephen, 1956 (basis of record)
Anelassorhynchus Annandale, 1922 (additional source)
Anelassorhynchus indivisus (Sluiter, 1900) (basis of record)
Anelassorhynchus semoni (Fischer, 1896) (basis of record)
Bonellia Rolando, 1822 (basis of record)
Bonellia minor Marion in Rietsch, 1886 (basis of record)
Bonellia suhmii Selenka, 1885 (basis of record)
Bonellia viridis Rolando, 1822 (additional source)
Bonelliida (basis of record)
Bonelliidae Lacaze-Duthiers, 1858 (basis of record)
Echiura incertae sedis (basis of record)
Echiurida (basis of record)
Echiuridae Quatrefages, 1847 (additional source)
Echiuroidea (basis of record)
Echiurus Guérin-Méneville, 1831 (additional source)
Echiurus abyssalis Skorikow, 1906 (additional source)
Echiurus echiurus (Pallas, 1766) (additional source)
Hamingia Danielssen & Koren, 1880 (basis of record)
Hamingia arctica Danielssen & Koren, 1880 (basis of record)
Maxmuelleria Bock, 1942 (basis of record)
Maxmuelleria aulacoferum (Hérubel, 1924) (basis of record)
Maxmuelleria faex (Selenka, 1885) (basis of record)
Maxmuelleria gigas (M. Müller, 1852) (basis of record)
Maxmuelleria lankesteri (Herdman, 1897) (basis of record)
Ochetostoma Rüppell & Leuckart, 1828 (additional source)
Ochetostoma baronii (Greeff, 1872) (basis of record)
Ochetostoma erythrogrammon Rüppell & Leuckart, 1828 (basis of record)
Sactosoma Fisher, 1946 (basis of record)
Sactosoma vitreum (Danielssen & Koren, 1880) (basis of record)
Thalassema Pallas, 1774 (additional source)
Thalassema arcassonense Cuénot, 1902 (basis of record)
Thalassema elapsum Sluiter, 1912 (basis of record)
Thalassema thalassema (Pallas, 1774) (additional source)
Thalassematidae Forbes & Goodsir, 1841 (additional source)

Arctic Ocean for Echiurus echiurus (Pallas, 1766) 
Arctic Ocean for Hamingia arctica Danielssen & Koren, 1880 
Arctic Ocean for Maxmuelleria faex (Selenka, 1885) 
European waters (ERMS scope) for Amalosoma eddystonense Stephen, 1956 
European waters (ERMS scope) for Anelassorhynchus indivisus (Sluiter, 1900) 
European waters (ERMS scope) for Anelassorhynchus semoni (Fischer, 1896) 
European waters (ERMS scope) for Bonellia minor Marion in Rietsch, 1886 
European waters (ERMS scope) for Bonellia suhmii Selenka, 1885 
European waters (ERMS scope) for Bonellia viridis Rolando, 1822 
European waters (ERMS scope) for Echiurus abyssalis Skorikow, 1906 
European waters (ERMS scope) for Echiurus echiurus (Pallas, 1766) 
European waters (ERMS scope) for Hamingia arctica Danielssen & Koren, 1880 
European waters (ERMS scope) for Maxmuelleria aulacoferum (Hérubel, 1924) 
European waters (ERMS scope) for Maxmuelleria faex (Selenka, 1885) 
European waters (ERMS scope) for Maxmuelleria gigas (M. Müller, 1852) 
European waters (ERMS scope) for Maxmuelleria lankesteri (Herdman, 1897) 
European waters (ERMS scope) for Ochetostoma baronii (Greeff, 1872) 
European waters (ERMS scope) for Ochetostoma erythrogrammon Rüppell & Leuckart, 1828 
European waters (ERMS scope) for Sactosoma vitreum (Danielssen & Koren, 1880) 
European waters (ERMS scope) for Thalassema arcassonense Cuénot, 1902 
European waters (ERMS scope) for Thalassema elapsum Sluiter, 1912 
European waters (ERMS scope) for Thalassema thalassema (Pallas, 1774) 
Mediterranean Sea for Bonellia viridis Rolando, 1822 
Mediterranean Sea for Echiurus abyssalis Skorikow, 1906 
Mediterranean Sea for Maxmuelleria gigas (M. Müller, 1852) 
Mediterranean Sea for Ochetostoma erythrogrammon Rüppell & Leuckart, 1828 
Mediterranean Sea for Thalassema thalassema (Pallas, 1774)