Journal article Open Access

# 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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{
"DOI": "10.5281/zenodo.1068462",
"abstract": "<p>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&ndash;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.</p>",
"author": [
{
"family": "Victor, Benjamin C."
}
],
"container_title": "Journal of the Ocean Science Foundation",
"id": "1068462",
"issued": {
"date-parts": [
[
2017,
11,
29
]
]
},
"page": "11-31",
"publisher": "Zenodo",
"title": "Review of the Indo-Pacific Pseudojuloides cerasinus species complex with a description of two new species (Teleostei: Labridae)",
"type": "article-journal",
"volume": "29"
}
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