Abstract
Three amphipods of the family Photidae collected from Korean waters are reported here with detailed descriptions and illustrations. The Korean materials of Gammaropsis examined in this study are readily assigned to G. longipropodi by the characteristic shape of gnathopod 2 in males: not slenderly produced posterior margin of the carpus, uniform width of very elongate propodus, and the transverse palm. Among the species of genus Photis, P. fischmanni is only one species bearing stridulation ridges of the basis on gnathopod 2 and coxa 3 simultaneously in females, until now. However, Photis stridulus sp. nov. also show this characteristic but is clearly distinguishable from P. fischmanni by the weak setation of the appendages, smaller eye on the anterior cephalic lobe, and the slender carpus and propodus on gnathopod 1. The genus Podoceropsis is recorded from Korean waters for the first time with the discovery of P. clavapes sp. nov. This new species is characterized by its elongate propodus and dactylus on gnathopod 2 and the shape of the posterior lobe of the basis on pereopod 5 in mature males.
References
Alderman, A.L. (1936) Some new and little known amphipods of California. University of California Publications in Zoology, 41, 53–74.
Barnard, J.L. (1955) Gammaridean Amphipoda (Crustacea) in the collections of Bishop Museum. Bernice P. Bishop Museum Bulletin, 215, 1–46.
Barnard, J.L. (1962) Benthic marine Amphipoda of southern California: Families Aoridae, Photidae, Ischyroceridae, Corophiidae, Podoceridae. Pacific Naturalist, 3, 1–72.
Barnard, J.L. & Karaman, G.S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, 13 (Supplement), 1–866.
https://doi.org/10.3853/j.0812-7387.13.1991.91Conlan, K.E. (1983) The amphipod superfamily Corophioidea in the northeastern Pacific region 3. Family Isaeidae: systematics and distributional ecology. Publications in Natural Sciences, National Museum of Natural Sciences-Canada, 4, 1–75.
Gurjanova, E.F. (1938) Amphipoda, Gammaroidea of Siaukhu Bay and Sudzukhe Bay (Japan Sea). Reports of the Japan Sea Hydrobiological Expeditson of the Zoological Institute of the Academy of Sciences USSR in 1934, 1, 241–404. [In Russian]
Gurjanova, E.F. (1951) Amphipoda-Gammaridea of the seas of the USSR and adjoining waters. Keys to the Fauna of the USSR. Zoological Institute of the Academy of Science of the USSR, Saint Petersburg, 1029 pp. [in Russian]
Hirayama, K. (1984) Taxonomic studies on the shallow water gammaridean Amphlpoda of West Kyushu, Japan II. Corophiidae. Publications of Seto Marine Biological Laboratory, 29, 1–92.
https://doi.org/10.5134/176085Kim, Y.H. & Lee, K.S. (2010) Gammaropsis utinomii New to Korea (Crustacea: Amphipoda: Photidae). The Korean Journal of Systematic Zoology, 26, 165–170.
https://doi.org/10.5635/kjsz.2010.26.2.165Kim, Y.H., Eun, Y. & Lee, K.S. (2005) Amphipods (Gammaridean and Caprellidea) Fauna of Jindo Island in Korea. The Korean Journal of Systematic Zoology, Special Issue 5, 1–11.
Kim, W. & Kim, C.B. (1991) The marine amphipod crustaceans of Ulreung Island, Korea: part I. Korean Journal of Zoology, 34, 232–252.
Lowry, J.K. & Myers, A.A. (2013) A phylogeny and classification of the Senticaudata subord. nov. (Crustacea: Amphipoda). Zootaxa, 3610 (1), 1–80.
https://doi.org/10.11646/zootaxa.3610.1.1Myers, A.A. (2009) Photoidae. In: Lowry, J.K. & Myers, A.A. (Eds.), Benthic Amphipoda (Crustacea: Peracarida) of the Great Barrier reef. Australia. Zootaxa, 2260, pp. 771–799.
Myers, A.A. & Lowry, J.K. (2003) A phylogeny and a new classification of the Corophiidea Leach, 1814 (Amphioda). Journal of Crustacean Biology, 23, 443–485.
https://doi.org/10.1163/20021975-99990353Nagata, K. (1961) Two new amphipods of the genus Eurystheus from Japan. Publications of Seto Marine Biological Laboratory, 9, 31–36.
https://doi.org/10.5134/174664Ren, X.Q. (1992) Studies on the Gammaridea (Crustacea: Amphipoda) from Jiaozhou bay (Yellow sea). In: Transactions of the Chinese Crustacean Sociery. Vol. 3. Qingdao Ocean University Press, Qingdao, pp. 214–317.
Stout, V.R. (1913) Studies in Laguna Amphipoda. Zoologische Jahrbucher Abteilungfiir Systematik Oekologie und Geographie der Tiere, 34, 633–659.
https://doi.org/10.5962/bhl.part.19898Watling, L. (1989) A classification system for crustacean setae based on the homology concept. In: Felgenhauer, B., Watling, L. & Thistle, A.B. (Eds.), Functional morphology of feeding and grooming in Crustacea. CRC Press, Rotterdam, pp. 15–26.
WoRMS (2016) World Register of Marine species. Available from: http://www.marinespecies.org/ (accessed 2 January 2016)