Current Herpetology
Online ISSN : 1881-1019
Print ISSN : 1345-5834
Original articles
A New Species of Lentic Breeding Salamander (Amphibia, Caudata) From Central Japan
Masafumi MATSUIYasuchika MISAWAKanto NISHIKAWATomohiko SHIMADA
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2017 Volume 36 Issue 2 Pages 116-126

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Abstract

A new species of salamander, Hynobius mikawaensis, is described from the eastern part of Aichi Prefecture, central Japan. It is a lentic breeder of the so-called H. lichenatus species group, and is phylogenetically closest to H. nigrescens and H. takedai. Morphologically, it differs greatly from H. nigrescens, but is very similar to H. takedai, from which it could be differentiated by some morphological traits such as shorter forelimbs and hindlimbs, but longer axilla-groin length, all relative to snout-vent length. The new species from the southern Pacific side of central Japan is completely separated geographically from H. nigrescens and H. takedai, both from the northern, Japan Sea side, by the intervening high mountains. This north/south disjunctive distributional pattern is highly unique among Japanese fauna. The range of the species is so small that immediate measure of conservation is necessary.

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© 2017 The Herpetological Society of Japan
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