The mitochondrial genome of the marine gastropod Neverita didyma (Roding, 1798) (Mollusca: Gastropoda)

In this study, the complete mitochondrial genome of the Neverita didyma (Mollusca: Gastropoda) was sequenced. The mitochondrial genome is 15,252 bp in length, containing 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes. The overall nucleotides base composition of the heavy strand is 30.47% for A, 14.09%% for C, 15.89%for G, and 39.56% for T with an AT-rich feature (70.03%). All the protein-coding genes begin with an ATG codon, the common termination codon is TAA, except for nd2 and nd4l terminated with TAG and nd5 terminated by incomplete codon TA. Seen from the phylogenetic tree, Naticarius hebraeus, and N. didyma from the same Superfamily (Naticoidea) clustered into one branch. The data would provide useful data for further studies on population genetics and molecular systematics.