02282nas a2200217 4500008004100000245012200041210006900163260000800232300001100240520158700251653001401838653001501852653002401867653001101891653001301902100002001915700002101935700001901956700001901975856007001994 2017 eng d00aA revision and phylogenetic analysis of the millipede genus Oxidus Cook, 1911 (Polydesmida, Paradoxosomatidae)0 arevision and phylogenetic analysis of the millipede genus iOxidu cmar a1–223 a

The genus Oxidus Cook, 1911 is revised to contain five species, O. avia (Verhoeff, 1937), O. gigas (Attems, 1953), O. gracilis (C.L. Koch, 1847), O. riukiaria (Verhoeff, 1940), and “species inquirenda” O. obtusus (Takakuwa, 1942). A cosmopolitan species, O. gracilis, is widely found in temperate and sub-tropical regions over the world, but other species have limited distribution in restricted regions, e.g., O. gigas in northern Vietnam, O. riukiaria and O. avia in the Ryukyu Islands (Japan). Four species, O. gracilis, O. riukiaria, O. avia and O. gigas, are confirmed as different from each other in gonopod characters, coloration and body size. The status of the last species, O. obtusus, is still doubtful and requires examination of further fresh material. The phylogenetic relationships among species of Oxidus is analyzed using two fragments of the mitochondrial genes COI (Cytochrome c Oxidase subunit I) and 16S rRNA. Three species of Oxidus are clearly separated from each other; O. gigas and O. gracilis form a monophyletic sister group with O. riukiaria. The genus Oxidus is also monophyletic and more closely related to the genus Tylopus Jeekel, 1968 than to the genera Sellanucheza Enghoff, Golovatch & Nguyen, 2004 or Kronopolites Attems, 1914. In addition, an identification key to species of Oxidus is provided.

10aDiplopoda10amillipedes10amolecular phylogeny10aOxidus10aRevision1 aNguyen, Anh, D.1 aKorsós, Zoltán1 aJang, Kuem-Hee1 aHwang, Ui-Wook uhttps://europeanjournaloftaxonomy.eu/index.php/ejt/issue/view/29901753nas a2200241 4500008004100000022001400041245018100055210006900236260001600305300001200321490000700333520093300340653001401273653001901287653001901306653002101325653001201346653001501358653001101373653001301384100002101397856009301418 2018 eng d a1742-758400aThe invasive species Cylindrodesmus hirsutus Pocock (Diplopoda: Polydesmida: Haplodesmidae) spreads to the northern Caribbean, with a compilation of published localities0 ainvasive species iCylindrodesmus hirsutusi Pocock Diplopoda Poly cJan-12-2018 a299-3020 v383 a

Millipede diversity in tropical regions, and in Mexico in particular, is still mostly unknown. A modest but recurrent source of new Mexican species is the colonization of exotic species, due to human activity. The invasive species Cylindrodesmus hirsutus Pocock, 1889 has spread from its area of origin in Indonesia or Melanesia and become a virtually pantropical species. Although long known from South and Central America, reports from the Caribbean are sparse and limited to some eastern islands and southern Central America. On 9 March 2016, two adult specimens were found on Cozumel Island, Quintana Roo, in an area of medium semideciduous tropical forest. This paper comprises the first record of this species from Mexico and the northern Caribbean. Given the intense commercial activity in the region, the presence of more populations both in Cozumel Island and in the mainland coast is highly probable.

10aCaribbean10aCylindrodesmus10aExotic species10ainvasive species10aMéxico10amillipedes10aOxidus10aRhinotus1 aRecuero, Ernesto uhttps://www.cambridge.org/core/product/identifier/S1742758418000255/type/journal_article