Alomasoma Zenkevitch, 1958 (additional source)
Alomasoma nordpacificum Zenkevitch, 1958 (additional source)
Amalosoma Fisher, 1948 (additional source)
Amalosoma eddystonense Stephen, 1956 (additional source)
Anelassorhynchus indivisus (Sluiter, 1900) (additional source)
Anelassorhynchus semoni (Fischer, 1896) (additional source)
Bonellia Rolando, 1822 (additional source)
Bonellia minor Marion in Rietsch, 1886 (additional source)
Bonellia plumosa DattaGupta, 1981 (additional source)
Bonellia pumicea Sluiter, 1891 (additional source)
Bonellia suhmii Selenka, 1885 (additional source)
Bonellia viridis Rolando, 1822 (additional source)
Bonelliopsis Fisher, 1946 (additional source)
Bonelliopsis minutus DattaGupta, 1981 (additional source)
Bruunellia Zenkevitch, 1966 (additional source)
Bruunellia bandae Zenkevitch, 1966 (additional source)
Charcotus DattaGupta, 1981 (additional source)
Charcotus charcotus DattaGupta, 1981 (additional source)
Charcotus clavatum DattaGupta, 1981 (additional source)
Choanostomellia Zenkevitch, 1964 (additional source)
Choanostomellia bruuni (Zenkevitch, 1964) (additional source)
Choanostomellia filatovae (Zenkevitch, 1964) (additional source)
Echiurinae Quatrefages, 1847 represented as Echiuridae Quatrefages, 1847 (additional source)
Echiurus Guérin-Méneville, 1831 (additional source)
Echiurus abyssalis Skorikow, 1906 (additional source)
Echiurus echiurus (Pallas, 1766) (additional source)
Eubonellia Fisher, 1946 (additional source)
Eubonellia longistomum DattaGupta, 1981 (additional source)
Eubonellia noratlanticum DattaGupta, 1981 (additional source)
Hamingia Danielssen & Koren, 1880 (additional source)
Hamingia arctica Danielssen & Koren, 1880 (additional source)
Jakobia Zenkevitch, 1958 (additional source)
Jakobia similaris DattaGupta, 1981 (additional source)
Maxmuelleria Bock, 1942 (additional source)
Maxmuelleria aulacoferum (Hérubel, 1924) (additional source)
Maxmuelleria faex (Selenka, 1885) (additional source)
Maxmuelleria gigas (M. Müller, 1852) (additional source)
Maxmuelleria lankesteri (Herdman, 1897) (additional source)
Maxmuelleria verrucosum (Studer, 1879) (additional source)
Nellobia Fisher, 1946 (basis of record)
Nellobia eusoma Fisher, 1946 (additional source)
Ochetostoma Rüppell & Leuckart, 1828 (additional source)
Ochetostoma baronii (Greeff, 1872) (additional source)
Ochetostoma erythrogrammon Rüppell & Leuckart, 1828 (additional source)
Prometor Fisher, 1948 (additional source)
Prometor poculum Hartman in Hartman & Barnard, 1960 accepted as Prometor pocula Hartman in Hartman & Barnard, 1960 (additional source)
Protobonellia Ikeda, 1908 (additional source)
Protobonellia mitsukurii Ikeda, 1908 (additional source)
Pseudobonellia Johnston & Tiegs, 1919 (additional source)
Pseudobonellia iraidii Murina, 1984 (additional source)
Thalassema Pallas, 1774 (additional source)
Thalassema arcassonense Cuénot, 1902 (additional source)
Thalassema elapsum Sluiter, 1912 (additional source)
Thalassema philostracum Fisher, 1947 (additional source)
Thalassema thalassema (Pallas, 1774) (additional source)
Thalassema viride Verrill, 1879 (additional source)