User:Taywalk8/Parribacus japonicus

A defining characteristic of the P. japonicus is their fifth walking limb has a bristly outer branch where the limb bends into two pieces. The P. japonicus is also found in both Japanese and Taiwanese waters, and sometimes they live on reefs. P. japonicus mates by passing sperm without contact, and they display precopulatory sexual selection, where the male shows himself off to the female in order to mate with her. As a result of that mating P. japonicus produce phyllosoma larvae, which is one of the most abundant larvae found in costal waters of Japan and Taiwan.

P. japonicus was discovered by L. B. Holthuis in 1960, and was often confused for P. antarcticus. Of the scyllarid lobsters, it is most closely related to Parribacus scarlatinus. It is an gonochorous external brooder. Mating takes place from May to July, with the greatest activity during July.