Table 3.
Definitive hosts of Corynosoma semerme. *Source not viewed, ^Found in Host-Parasite Database NHM London without further reference details.
| Host order | Host family | Host species | Host vernacular name | Geographical locality | Reference |
| Artiodactyla | Monodontidae | Delphinapterus leucas (Pallas, 1776) | Beluga, Beluga whale, white whale | Bristol Bay, Alaska, Bering Sea |
Neiland 1962, Measures et al. 1995 |
| Carnivora | Odobenidae | Odobenus rosmarus (Linnaeus, 1758) | walrus | Arctic Ocean, Northern Atlantic | Delyamure 1961, von Sprehn 1966 cited by Raga 1992 |
| Carnivora | Otariidae | Callorhinus ursinus (Linnaeus, 1758) | Northern fur seal | Alaska, Bering Sea, St. Paul Island | Kuzmina et al. 2012 |
| Carnivora | Otariidae | Callorhinus ursinus (Linnaeus, 1758) (as Callorhinus alascanus) | Northern fur seal | North America | Van Cleave 1953 |
| Carnivora | Phocidae | Cystophora cristata (Erxleben, 1777) | hooded seal | European Arctic | Delyamure 1961*, Treshchev 1982* cited by Raga 1992 |
| Carnivora | Phocidae | Erignathus barbatus (Erxleben, 1777) | bearded seal | North America | Van Cleave 1953 |
| Carnivora | Phocidae |
Erignathus
barbatus (Erxleben, 1777) |
bearded seal | White Sea | Popova et al. 1975* cited by Raga 1992 |
| Carnivora | Phocidae | Halichoerus grypus (Fabricius, 1791) | grey seal | Arctic Ocean, Northern Atlantic, European Arctic | von Sprehn 1966* cited by Raga 1992 |
| Carnivora | Phocidae | Halichoerus grypus (Fabricius, 1791) | grey seal | Germany | Lühe 1911 |
| Carnivora | Phocidae | Halichoerus grypus (Fabricius, 1791) | grey seal | Germany | Aznar et al. 2006 |
| Carnivora | Phocidae | Halichoerus grypus (Fabricius, 1791) | grey seal | Baltic Sea, Finland, Gulf of Bothnia, Åland Island | Nickol et al. 2002 |
| Carnivora | Phocidae | Halichoerus grypus (Fabricius, 1791) | grey seal | Baltic Sea, Baltic Proper, Bothnian Sea, Bothnian Bay, Sweden | Leidenberger and Bäcklin 2008 |
| Carnivora | Phocidae | Halichoerus grypus (Fabricius, 1791) | grey seal | Baltic Sea, Germany, Schleswig-Holstein | Waindok et al. 2018 |
| Carnivora | Phocidae | Histriophoca fasciata (Zimmerman, 1783) (as Phoca fasciata) | ribbon seal | Bering Sea, Alaska | Rausch et al. 1990 |
| Carnivora | Phocidae | Histriophoca fasciata (Zimmerman, 1783) (as Phoca fasciata) | ribbon seal | Arctic Ocean, Bering Sea | Shults and Frost 1988 |
| Carnivora | Phocidae | Histriophoca fasciata (Zimmerman, 1783) (as Phoca fasciata) | ribbon seal | Sea of Okhotsk | Shults and Frost 1988 |
| Carnivora | Phocidae | Pagophilus groenlandicus (Erxleben, 1777) (as Phoca groenlandica) | harp seal, Greenland seal | Arctic Ocean, Northern Atlantic, European Arctic | von Sprehn 1966* cited by Raga 1992 |
| Carnivora | Phocidae | Phoca largha Pallas, 1811 | spotted seal, larga seal | Sea of Okhotsk | Sasaki et al. 2019 |
| Carnivora | Phocidae | Phoca largha Pallas, 1811 | spotted seal, larga seal | Russia | Aznar et al. 2006 |
| Carnivora | Phocidae | Phoca largha Pallas, 1811 | spotted seal, larga seal | Bering Sea, Alaska | Rausch et al. 1990 |
| Carnivora | Phocidae | Phoca largha Pallas, 1811 | spotted seal, larga seal | Arctic Ocean, Bering Sea | [On the helminthofauna of largi and harbour seals.]^ |
| Carnivora | Phocidae | Phoca largha Pallas, 1811 | spotted seal, larga seal | Sea of Okhotsk | [On the helminthofauna of largi and harbour seals.]^ |
| Carnivora | Phocidae | Phoca vitulina Linnaeus, 1758 | harbour seal | Germany | Lühe 1911 |
| Carnivora | Phocidae | Phoca vitulina Linnaeus, 1758 | harbour seal | Sweden | Lundström 1942 |
| Carnivora | Phocidae | Phoca vitulina Linnaeus, 1758 | harbour seal | North Sea, Germany, Schleswig-Holstein | Waindok et al. 2018 |
| Carnivora | Phocidae | Phoca vitulina Linnaeus, 1758 | harbour seal | Arctic Ocean, Northern Atlantic, European Arctic | von Sprehn 1966* cited by Raga 1992 |
| Carnivora | Phocidae | Phoca vitulina Linnaeus, 1758 | harbour seal | Alaska, Bering Sea, St. Paul Island | Kuzmina et al. 2012 |
| Carnivora | Phocidae | Pusa hispida (Schreber, 1775) | ringed seal | Germany | Lühe 1911 |
| Carnivora | Phocidae | Pusa hispida (Schreber, 1775) | ringed seal | Baltic Sea, Bothnian Bay, Finland | Helle and Valtonen 1981 |
| Carnivora | Phocidae | Pusa hispida (Schreber, 1775) | ringed seal | Baltic Sea, Bothnian Bay, Finland | Valtonen and Helle 1988 |
| Carnivora | Phocidae | Pusa hispida (Schreber, 1775) | ringed seal | Baltic Sea, Bothnian Bay, Finland | Valtonen et al. 2004 |
| Carnivora | Phocidae | Pusa hispida (Schreber, 1775) | ringed seal | North America | Van Cleave 1953 |
| Carnivora | Phocidae | Pusa hispida (Schreber, 1775) (as Phoca foetida) | ringed seal | Baltic Sea, Sweden, Östra Rönnskär | Forssell 1904 |
| Carnivora | Phocidae | Pusa hispida (Schreber, 1775) (as Phoca foetida) | ringed seal | Baltic Sea, Finland, Tvärminne | Forssell 1905 |