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Larvae of Clistobothrium grimaldii (Cestoda: Phyllobothriidea) from a Cape fur seal (Arctocephalus pusillus pusillus) kept in a zoo in Japan.

ABSTRACT: The larval form of the Phyllobothriidea cestode was found in the blubber of a Cape fur seal (Arctocephalus pusillus pusillus) from a zoo in Japan. Bladder-bearing larval cestodes with a scolex have been occasionally reported from blubbers of pinnipeds and morphologically identified as Clistobothrium delphini (formerly known as Phyllobothrium delphini) or rarely Clistobothrium grimaldii (Monorygma grimaldii). Although the larvae here morphologically resembled C. delphini, the 28S rDNA sequence was 100% (1,430/1,430 bp) homologous to the registered sequence of C. grimaldii (GenBank Accession No. KU724058). This discrepancy between morphological and molecular analyses confirms the difficulty of identifying C. delphini and C. grimaldii larvae based solely on morphology, and the need for molecular data to elucidate the morphological variations in Clistobothrium parasites.

SUBMITTER: Masuda A 

PROVIDER: S-EPMC10076198 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature

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Larvae of Clistobothrium grimaldii (Cestoda: Phyllobothriidea) from a Cape fur seal (Arctocephalus pusillus pusillus) kept in a zoo in Japan.

Masuda Aya A   Tokunaga Urara U   Ozawa Kenichi K   Matsumoto Jun J  

The Journal of veterinary medical science 20230124 3

The larval form of the Phyllobothriidea cestode was found in the blubber of a Cape fur seal (Arctocephalus pusillus pusillus) from a zoo in Japan. Bladder-bearing larval cestodes with a scolex have been occasionally reported from blubbers of pinnipeds and morphologically identified as Clistobothrium delphini (formerly known as Phyllobothrium delphini) or rarely Clistobothrium grimaldii (Monorygma grimaldii). Although the larvae here morphologically resembled C. delphini, the 28S rDNA sequence wa  ...[more]

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