Redescription of Proteocephalus fallax La Rue, 1911 (Cestoda) and a list of proteocephalid tapeworms of whitefish (Coregonus spp.).

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  • Additional Information
    • Source:
      Publisher: Institute of Parasitology, Biology Centrum the Academy of Sciences of the Czech Republic Country of Publication: Czech Republic NLM ID: 0065750 Publication Model: Electronic Cited Medium: Internet ISSN: 1803-6465 (Electronic) Linking ISSN: 00155683 NLM ISO Abbreviation: Folia Parasitol (Praha) Subsets: MEDLINE
    • Publication Information:
      Publication: 1991- : České Budějovice : Institute of Parasitology, Biology Centrum the Academy of Sciences of the Czech Republic
      Original Publication: Praha : Academia
    • Subject Terms:
      Cestoda*/classification ; Cestoda*/anatomy & histology ; Cestoda*/isolation & purification ; Fish Diseases*/parasitology ; Cestode Infections*/veterinary ; Cestode Infections*/parasitology ; Salmonidae*/parasitology ; Phylogeny*; Animals ; Switzerland ; Norway
    • Abstract:
      Tapeworms of the genus Proteocephalus Weinland, 1858 (Cestoda: Proteocephalidae) are common and widespread intestinal parasites of whitefish (Coregonus spp., Salmonidae: Coregoninae). Previous taxonomic studies, based solely on morphology and inconsistently fixed specimens, concluded that all salmoniform fish, including whitefish, are parasitised by a single euryxenous and highly polymorphic species, Proteocephalus longicollis (Zeder, 1800). However, recent molecular phylogenetic analyses have revealed the existence of several species specific to individual genera or even species of salmoniform fish. In this study, Proteocephalus fallax La Rue, 1911 is redescribed based on newly collected and genetically characterised specimens from several Coregonus species in Switzerland, the type locality of the species, and in Norway. This cestode was previously synonymised with P. exiguus La Rue, 1911, a parasite of whitefish in North America, but the two species are not closely related. Proteocephalus fallax differs from P. exiguus in its larger body size, wider proglottids, shorter cirrus sac and broader scolex. In addition, the other Proteocephalus species described in whitefish are briefly discussed, with comments on their validity, host range and distribution.
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    • Contributed Indexing:
      Keywords: Eucestoda; Europe; Proteocephalidae; Salmonidae; distribution; morphology; taxonomy
    • Publication Date:
      Date Created: 20241105 Date Completed: 20241105 Latest Revision: 20241105
    • Publication Date:
      20241106
    • Accession Number:
      10.14411/fp.2024.019
    • Accession Number:
      39498539