The phylogenetic relationships between 10 of 13 genera of crabs from the superfamily Dorippoidea were investigated using mitochondrial 16S rRNA, 12S rRNA and cytochrome c oxidase subunit I gene sequences. The resultant phylogenetic trees based on the

A molecular phylogeny is presented for the subfamily Dorippinae (including 9 individuals, representing 5 species and 4 genera), based on the sequence data from 16S rRNA gene. Two-cluster test between lineages in these phylogenetic trees has been performed.

Based on combined evidence derived from mtDNA sequence, morphology and behavior, we here describe a new species of ocypodid crab of the genus Ilyoplax from the Philippines and Sulawesi (Indonesia), I. pacifica, new species. Morphologically, Ilyoplax pacifica