Biodiversity Data Journal 8: e50500 doi: 10.3897/BDJ.8.e50500 Research Article Host records and geographical distribution of Corynosoma magdaleni, C. semerme and C. strumosum (Acanthocephala: Polymorphidae) Sonja Leidenberger‡§, Sven Boström , Matthew Thomas Wayland| ‡ School of Bioscience, Department of Biology and Bioinformatics, University of Skövde, Skövde, Sweden § Swedish Museum of Natural History, Department of Zoology, Stockholm, Sweden | University of Cambridge, Cambridge, United Kingdom Corresponding author: Sonja Leidenberger (
[email protected]) Academic editor: Yasen Mutafchiev Received: 27 Jan 2020 | Accepted: 30 Mar 2020 | Published: 06 Apr 2020 Citation: Leidenberger S, Boström S, Wayland MT (2020) Host records and geographical distribution of Corynosoma magdaleni, C. semerme and C. strumosum (Acanthocephala: Polymorphidae). Biodiversity Data Journal 8: e50500. https://doi.org/10.3897/BDJ.8.e50500 Abstract A literature survey was conducted to investigate the host and geographical distribution patterns of three Corynosoma species (Acanthocephala: Polymorphidae), viz. C. magdaleni, C. semerme and C. strumosum. All three species appear to be restricted to the Northern Hemisphere. Occurrence records of C. magdaleni are limited to the Northern Atlantic coasts, while C. semerme has a circumpolar distribution. The geographical range of Corynosoma strumosum encompasses the distributions of the other two species, but also extends into warmer southern regions. Some Corynosoma populations are living with their definitive hosts in very isolated locations, such as in the brackish Baltic Sea or different freshwater lakes (e.g. Lake Saimaa). All three species have a heteroxenous life cycle, comprising a peracaridan intermediate host, a fish paratenic host and a mammalian definitive host. Occasionally, an acanthocephalan may enter an accidental host, from which it is unable to complete its life cycle.