The green tiger prawn, Penaeus semisulcatus, is one of the economically important penaeid shrimp due to its larger body size compared with other shrimps in Penaeidae family. However, the taxonomic revision studies of Penaeidae have been one of the most controversial issues in recent years. Moreover, there are at least two morphotypes of the green tiger prawn, one with banded antenna, another with non-banded antenna. In this study, we report the complete mitochondrial genome of P. semisulcatus. The mitogenome has 16,002 base pairs (68.6% A + T content) and made up of total of 37 genes (13 protein-coding, 22 transfer RNAs and 2 ribosomal RNAs), and a control region. This study adds one more available complete mitogenomes of Penaeus and will provide useful genetic information for future evolutionary and taxonomic classification of Penaeidae.

Hemifusus tuba is an ecologically and economically important species of Buccinoidea, which comprises an ecologically diverse group of carnivorous marine gastropods. However, the taxonomic classification and phylogenetic studies have so far been limited. In this study, we report the first complete mitochondrial genome of Melongenidae from H. tuba. The mitogenome has 15,483 bp (68.2% A + T content) and made up of total of 37 genes (13 protein-coding, 22 transfer RNAs, and 2 ribosomal RNAs), and a control region. This study was the first to provide complete mitogenome of Melongenidae and will provide useful genetic information for future phylogenetic and taxonomic classification of Buccinoidea.