We determined the complete mitochondrial genome of Palaemon gravieri (Yu, 1930), which is collected from East China Sea (124°E and 33.5°N). Total mitochondrial genome length of P. gravieri was 15 740 bp, in which 13 proteins, 2 ribosomal RNAs, 22 transfer RNAs, and a putative control region were encoded. Nine and four protein-coding genes are encoded on the H-strand and on the L-strand, respectively. According to the phylogenetic analysis, P. gravieri was most closely related to Exopalaemon carinicauda among the compared five species belonging to Palaemonidae. Although overall gene organization was same, the putative control region (between SrRNA gene and tRNAIlel) is least similar to one another among mitochondrial genomes from the compared 5 species belonging to Palaemonidae.
Keywords: Barcode; Palaemon; decapod crustacean; mitochondrial genome.