A defining characteristic of the P. japonicus is their fifth walking limb has a bristly outer branch where the limb bends into two pieces. [1] The P. japonicus is also found in both Japanese and Taiwanese waters, and sometimes they live on reefs.[2][3] 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.[3] 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.[2]
P. japonicus was discovered by L. B. Holthuis in 1960, and was often confused for P. antarcticus.[3] Of the scyllarid lobsters, it is most closely related to Parribacus scarlatinus.[4]
It is an gonochorous external brooder.[5] Mating takes place from May to July, with the greatest activity during July.[4]
References
edit- ^ Sekiguchi, Hideo (1986). "Identification of late-stage phyllosoma larvae of the scyllarid and palinurid lobsters in the Japanese waters". NIPPON SUISAN GAKKAISHI. 52 (8): 1289–1294. doi:10.2331/suisan.52.1289. ISSN 1349-998X.
- ^ a b Sekiguchi, Hideo; Inoue, Nariaki (2002). "Recent advances in larval recruitment processes of scyllarid and palinurid lobsters in Japanese waters". Journal of Oceanography. 63 (1): 159–159. doi:10.1007/s10872-007-0015-8. ISSN 0916-8370.
- ^ a b c Holthius, L.B. (1991). Marine Lobsters of the World. Leiden, The Netherlands: Nationaal Natuurhistorisch Museum. p. 213. ISBN 92-5-103027-8.
- ^ a b Holthuis, Lipke (1985). "A revision of the family Scyllaridae (Crustacea Decapoda Macrura). I. subfamily Ibacinae". Zoologische Verhandelingen. 1: 106–111 – via Naturalis Biodiversity Center.
- ^ Ruppert, Edward E. (2004). Invertebrate zoology : a functional evolutionary approach. Richard S. Fox, Robert D. Barnes (7th ed.). Belmont, CA: Thomson-Brooks/Cole. ISBN 0-03-025982-7. OCLC 53021401.