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# Review of the Indo-Pacific Pseudojuloides cerasinus species complex with a description of two new species (Teleostei: Labridae)

Victor, Benjamin C.

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<dc:creator>Victor, Benjamin C.</dc:creator>
<dc:date>2017-11-29</dc:date>
<dc:description>The Pseudojuloides cerasinus species complex is a paradigm of the application of DNA taxonomy to coral-reef fish classification. Once considered a pan-Indo-Pacific species ranging from South Africa to the Hawaiian Islands, P. cerasinus has been divided into three different allopatric species in the Indian Ocean, based on differences in male-display color patterns and relatively deep genetic divergences. In this study, the Pacific Ocean populations are shown to represent four species: the original type population in the Hawaiian Islands; a new western Pacific species Pseudojuloides splendens, ranging from Japan to Australia and across most of the South Pacific; a new species Pseudojuloides polynesica, from French Polynesia and the Line Islands; and Pseudojuloides pyrius Randall &amp; Randall, 1981, endemic to the Marquesas Islands. The mtDNA lineages of the complex diverge from 3.5–11.3% in the sequence of the mtDNA-barcode marker COI. The species illustrate some of the more interesting phenomena in the evolution of species complexes among coral reef fishes: the species differences are mainly in male-display color patterns, the degree of phenotypic divergence does not correlate with the amount of genetic divergence (the most different-appearing species is one of the least divergent), and a corollary that the various genetic lineages must be distinguished to avoid paraphyly in the taxonomic construct of the species complex. A neighbor-joining tree and genetic distance matrix are presented for the seven species of the P. cerasinus species complex.</dc:description>
<dc:identifier>https://zenodo.org/record/1068462</dc:identifier>
<dc:identifier>10.5281/zenodo.1068462</dc:identifier>
<dc:identifier>oai:zenodo.org:1068462</dc:identifier>
<dc:relation>doi:10.5281/zenodo.1068461</dc:relation>
<dc:relation>url:https://zenodo.org/communities/biosyslit</dc:relation>
<dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
<dc:source>Journal of the Ocean Science Foundation 29 11-31</dc:source>
<dc:subject>ichthyology</dc:subject>
<dc:subject>taxonomy</dc:subject>
<dc:subject>systematics</dc:subject>
<dc:subject>coral reef fishes</dc:subject>
<dc:subject>wrasses</dc:subject>
<dc:subject>Labridae</dc:subject>
<dc:subject>labriformes</dc:subject>
<dc:subject>Indo-Pacific Ocean</dc:subject>
<dc:subject>DNA barcoding</dc:subject>
<dc:title>Review of the Indo-Pacific Pseudojuloides cerasinus species complex with a description of two new species (Teleostei: Labridae)</dc:title>
<dc:type>info:eu-repo/semantics/article</dc:type>
<dc:type>publication-article</dc:type>
</oai_dc:dc>

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