Pycnoplax surugensis ( Rathbun, 1932 )

Takeda, Masatsune, Ohtsuchi, Naoya & Komatsu, Hironori, 2021, Crabs (Crustacea, Decapoda) from the Sea off East and Southeast Asia collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 1. Sulu Sea and Sibutu Passage, Bulletin of the National Museum of Nature and Science. Series A, Zoology 47 (2), pp. 65-97 : 90-91

publication ID	https://doi.org/10.50826/bnmnszool.47.2-65
publication LSID	lsid:zoobank.org:pub:09E0EFF3-ABE7-43D7-AA85-DA3BF08E47B9
DOI	https://doi.org/10.5281/zenodo.12759980
persistent identifier	https://treatment.plazi.org/id/03CF87EE-FF93-D65B-B199-FAA1FD87BEB1
treatment provided by	Felipe (2024-07-17 13:48:01, last updated 2024-07-17 13:57:41)
scientific name	Pycnoplax surugensis ( Rathbun, 1932 )
status

Treatment

Pycnoplax surugensis ( Rathbun, 1932) View in CoL

Material examined. RV Hakuhō Maru KH-72-1 cruise, sta. 20 (Sibutu Passage; 05°40.9′N, 119°46.3′E – 05°43.1′N, 119°47.0′E; 460–514 m deep); otter trawl; 10 June, 1972; 1˂ ( CB 19.2 mm including second anterolateral teeth; CL 17.3 mm) GoogleMaps , NSMT-Cr 28986.

Remarks. This species has been placed in Carcinoplax since the original description in 1932, and wholly figured in some monographic works such as Guinot (1989), Sakai (1976), Chen (1984a, b), and Dai and Yang (1991) together with several taxonomic records. In the monographic work of the family Goneplacidae , however, Castro (2007) designated this species as the type species of the new genus Pycnoplax , and referred C. bispinosa Rathbun, 1914 , C. meridionalis Rathbun, 1923 , C. vioctoriensis Rathbun, 1923 and P. latifolia Castro, 2007 to the new genus. Some characters important to distinguish P. surugensis from the congeners are that the external orbital angle is triangular with an obtuse tip, the carapace first anterolateral tooth is narrow, sharp and directed forward, and the second (last) anterolateral tooth is markedly strong, sharply tuberculate and directed obliquely forward.

Distribution. West to South Pacific ( Japan, East China Sea, Taiwan, Philippines, Indonesia, and New Caledonia); 65–496 m deep.

References

Castro, P. 2007. A reappraisal of the family Goneplacidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and revision of the subfamily Goneplacinae, with the description of 10 new genera and 18 new species. Zoosystema 29: 609 - 774.

Chen, H. 1984 a. A study of the genus Carcinoplax (Crustacea, Decapoda: Goneplacidae) of Chinese waters. Oceanologia et Limnologia Sinica 15: 188 - 201, pl. 1 (in Chinese with English abstract).

Dai, A. and S. Yang, 1991. Crabs of the China Seas, 21 + 608 pp. China Ocean Press, Beijing.

Guinot, D. 1989. Le genre Carcinoplax H. Milne Edwards, 1852 (Crustacea, Brachyura: Goneplacidae). In Forest, J. (ed.): Resultats des campagnes MUSORSTOM, Volume 5. Memoires du Museum national d`Histoire naturelle, Paris (A) 144: 265 - 345.

Rathbun, M. J. 1914. A new genus and some new species of crabs of the family Goneplacidae. Scientific results of the Philippine cruise of the fisheries steamer lAlbatross, z 1907 - 1910. No. 32. Proceedings of the United States National Museum 48: 137 - 154.

Rathbun, M. J. 1923. Report on the crabs obtained by the F. I. S. lEndeavourz on the coasts of Queensland, New South Wales, Victoria, South Australia and Tasmania. Report on the Brachyrhyncha, Oxystomata and Dromiacea. Biological Results of the Fishing Experiments carried on by the F. I. S. lEndeavourz 1909 - 14, 5: 95 - 156, pls. 16 - 42.

Rathbun, M. J. 1932. Preliminary descriptions of new species of Japanese crabs. Proceedings of the Biological Society of Washington 45: 29 - 38.

Sakai, T. 1976. Crabs of Japan and the Adjacent Seas, xxix + 773 pp. (English volume), 461 pp. (Japanese volume), 16 pp. + 251 pls. (Plates). Kodansha Ltd., Tokyo.