A remarkable new species of the millipede genus Trachyjulus Peters, 1864 (Diplopoda, Spirostreptida, Cambalopsidae) from Thailand, based both on morphological and molecular evidence

Publication Type:Journal Article
Year of Publication:2020
Authors:N. Likhitrakarn, Golovatch, S. Ilyich, Jeratthitikul, E., Srisonchai, R., Sutcharit, C., Panha, S.
Journal:ZooKeys
Volume:925
Pagination:55-72
Date Published:08/04/2020
ISSN:1313-2989
Keywords:Cave, diplopod, molecular-based phylogeny, morphological character, Taxonomy
Abstract:

A new, giant species of Trachyjulus from a cave in southern Thailand is described, illustrated, and compared to morphologically closely related taxa. This new species, T. magnus sp. nov., is much larger than all other congeners and looks especially similar to the grossly sympatric T. unciger Golovatch, Geoffroy, Mauriès & VandenSpiegel, 2012, which is widespread in southern Thailand. Phylogenetic trees, both rooted and unrooted, based on a concatenated dataset of the COI and 28S genes of nine species of Cambalopsidae (Trachyjulus, Glyphiulus, and Plusioglyphiulus), strongly support the monophyly of Trachyjulus and a clear-cut divergence between T. magnus sp. nov. and T. unciger in revealing very high average p-distances of the COI gene (20.80–23.62%).

URL:https://zookeys.pensoft.net/article/49953/
DOI:10.3897/zookeys.925.49953
Short Title:ZK
Citation Key:275
Refereed Designation:Refereed
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