To avoid confusions related to the resurrection of Adenocephalus Nybelin, 1931 (Cestoda: Diphyllobothriidea), the type material of the Pacific broad tapeworm, Adenocephalus pacificus Nybelin, 1931, which also infects humans, is morphologically characterized. Transverse protuberances on the ventral side of proglottids anterior to gonopores, which are a diagnostic feature of the genus, are illustrated for the first time. The present study supports the importance of a study of type material even in the ‘molecular era’ of taxonomy, where the value of morphology is often underestimated. It also points out the need for specimen deposition in publicly accessible collections.
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2 November 2021
Importance of Museum Specimens: Resolving the Taxonomic Puzzle of Human-Infecting Broad Tapeworms Described by O. Nybelin in 1931, and Redescription of the Types of Adenocephalus pacificus
Jesús Servando Hernández-Orts,
Tomáš Scholz
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marine mammals
morphology
Otariidae
Pacific broad tapeworm
taxonomy
Type-material