The complete mitochondrial genome of <i>Halichoeres margaritaceus</i> (Actinopterygii, Labridae)

<i>Halichoeres margaritaceus</i> Valenciennes 1839 is a polygynous species of coral fish. We sequenced the complete mitochondrial genome of <i>H. margaritaceus</i>, and conducted a comprehensive analysis to reveal its characteristics. Results showed that the mitochondrial genome is a closed circular molecule comprising 16,710 bp. Phylogenetic analysis based on mitochondrial whole genome sequences revealed <i>H. margaritaceus</i> as a sister group of <i>H. ornatissimus, H. tenuispinis</i>, etc., with maximal support. This study presents, for the first time, the complete mitochondrial genome of <i>H. margaritaceus</i>, offering valuable insights that can aid in future research on the biodiversity and conservation management of this species.