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Title: Evaluating the ontogenetic external morphology of an ectoparasitic Torix tukubana (Hirudinida: Glossiphoniidae), with records of its new host amphibian species
Authors: Kambayashi, Chiaki
Kurabayashi, Atsushi
Nakano, Takafumi
Author's alias: 中野, 隆文
Keywords: Leech
Onychodactylus japonicus
Rana ornativentris
Issue Date: Feb-2019
Publisher: Springer Berlin Heidelberg
Journal title: Parasitology Research
Volume: 118
Issue: 2
Start page: 663
End page: 666
Abstract: Torix is a leech genus containing freshwater proboscidate species, and several members of this taxon are ectoparasites specific to amphibians. Torix tukubana inhabits mountain streams in Japan, and only two frog species are known to be hosts. We collected this leech from two other amphibians, Onychodactylus japonicus (Japanese clawed salamander) and Rana ornativentris (montane brown frog), for the first time. This finding suggests that the host specificity of T. tukubana is low. The immature individuals of T. tukubana were also collected and identified based on DNA data. This is the first juvenile record of this species confirmed by its DNA barcode sequences. Several morphological characters known from large individuals and used as diagnostic characteristics in taxonomic keys were not observed in the juveniles, suggesting that these are ontogenetic traits.
Rights: This is a post-peer-review, pre-copyedit version of an article published in 'Parasitology Research'. The final authenticated version s available online at:
The full-text file will be made open to the public on 13 November 2019 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
DOI(Published Version): 10.1007/s00436-018-6141-y
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