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      A new troglobitic species of Allochthonius (subgenus Urochthonius) (Pseudoscorpiones, Pseudotyrannochthoniidae) from Japan

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      Subterranean Biology

      Pensoft Publishers

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          Abstract

          Allochthonius (Urochthonius) yoshizawai sp. nov., found in Hiura-do Cave, a limestone cave located in the municipality of Kumakogen, Ehime Prefecture, Japan, is described. It can be distinguished from the consubgeneric species mainly by the carapacal chaetotaxy (6–2, 18), by the presence of 6 setae on the cheliceral palm, by the rallum with 11 blades, by the presence of 8 clavate coxal blades on coxae I, and by the decreased number and distinct shape of the chelal teeth. A redescription of the subgenus Urochthonius, and keys to the subgenera of Allochthonius and to the species and subspecies of Urochthonius are also provided, as well as some ecological remarks, a brief discussion on troglomorphisms for the subgenus, and potential threats for this species.

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          Most cited references 11

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          The phylogeny and classification of the Pseudoscorpionida (Chelicerata : Arachnida)

            Harvey (1992)
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            A new and endangered species of the pseudoscorpion genus Lagynochthonius from a cave in Vietnam, with notes on chelal morphology and the composition of the Tyrannochthoniini (Arachnida, Chelonethi, Chthoniidae)

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              The arachnid order Chelonethida

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                Author and article information

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                Journal
                Subterranean Biology
                SB
                Pensoft Publishers
                1314-2615
                1768-1448
                January 20 2021
                January 20 2021
                : 37
                : 43-55
                Article
                10.3897/subtbiol.37.58580
                © 2021

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