Abstract
A new stygiobiont species of the caridean genus Macrobrachium Bate, 1864 is described on the basis of two male specimens from an anchialine cave on Miyako Island, southern Ryukyu Islands. The new species, M. miyakoense, is compared with other five stygiobiont species of the genus characterized by a reduced eye, i.e. M. cavernicola (Kemp, 1924), M. villalobosi Hobbs, 1973, M. acherontium Holthuis, 1977, M. microps Holthuis, 1978, and M. poeti Holthuis, 1984. It is the first representative of stygiobiont species of Macrobrachium from East Asian waters.References
Bate, C. S. (1864) On a new genus, with four new species of freshwater prawns. Proceedings of the Zoological Society of London, 1868, 363–368.
Bruce, A. J. and Iliffe, T. (1993) The second occurrence of the troglobic shrimp Macrobrachium microps Holthuis (Crustacea, Decapoda, Palaemonidae), in Samoa. International Journal of Speleology, 22, 83–96.
Cai, Y., Naiyanetr, P. & Ng, P. K. L. (2004) The freshwater prawns of the genus Macrobrachium Bate, 1868, of Thailand (Crustacea: Decapoda: Palaemonidae). Journal of Natural History, 38, 581–649.
Chace, F. A. (1975) Cave shrimps (Decapoda: Caridea) from the Dominican Republic. Proceedings of the Biological Society of Washington, 88(4), 29–44.
Chace, F. A. Jr. & Bruce, A. J. (1993) The caridean shrimps (Crustacea: Decapoda) of the Albatross Philippine Expedition 1907–1910, Part 6: super family Palaemonoidea. Smithsonian Contributions to Zoology, 543, i–vii, 1–152.
Dang (1975) Phan loai tom cua nuoc ngot mien bac vietnam [The identities of North Vietnamese freshwater shrimp and crabs]. Tap san Sinh Vat-Dia Hoc [Journal of Biology-Geology], 13(3), 65–78. (in Vietnamese with French summary) (not seen)
Hobbs, H. H. (1973) Two new troglobitic shrimps (Decapoda: Alpheidae and Palaemonidae) from Oaxaca, Mexico. Association of Mexican Cave Studies, Bulletin, 5, 73–80.
Hobbs, H. H. Jr., Hobbs, H. H. III & Daniel, M. A. (1977) A review of the troglobitic decapod crustaceans of the Americas. Smithsonian Contributions to Zoology, 244, 1–183.
Holthuis, L. B. (1950) The Decapoda of the Siboga Expedition. Part 10. The Palaemonidae collected by the Siboga and Snellius expeditions with remarks on other species. 1. Subfamily Palaemoninae. Siboga Expeditie, Monographie, 39a(9), 1–268.
Holthuis, L. B. (1974) Subterranean Crustacea Decapoda Macrura collected by Mr. L. Botosaneanu during the 1973 Cuban-Roumanian Biospeological Expedition to Cuba. International Journal of Speleology, 6, 231–242.
Holthuis, L. B. (1977) Cave shrimps (Crustacea, Decapoda, Natantia) from Mexico. – Subterranean fauna of Mexico, Part III. Further results of the Italian zoological missions to Mexico, sponsored by the National Academy of Lincei (1973 and 1975). Problemi Attuali di Scienze e di Cultura, Academia nazionale dei Lincei, 171(3), 173–195.
Holthuis, L. B. (1978) Zoological results of the British Speleological Expedition to Papua New Guinea 1975. 7. Cavernicolous shrimps (Crustacea Decapoda, Natantia) from New Ireland and the Philippines. Zoologische Mededelingen, 53(19), 209–224.
Holthuis, L. B. (1984) Freshwater prawns (Crustacea Decapoda: Natantia) from subterranean waters of the Gunung Sewu area, central Java, Indonesia. Zoologische Mededelingen, 58(9), 141–148.
Holthuis, L. B. (1986) Decapoda. In: Botosaneanu, L. (Eds.), Stygofauna Mundi. E. J. Brill, Leiden, pp. 589–615.
Kemp, S. (1924) Crustacea Decapoda of the Siju Cave, Garo Hills, Assam. Records of the Indian Museum, 26, 41–48.
Nishida, M., Shikatani, N. & Shokita, S. (eds.) (2003) The Flora and Fauna of Inland Waters in the Ryukyu Islands. Tokai University Press, 572 pp.
Shimojana, M. (1978) Cave animals in North and South Daitou islands and sourthern part of Okinawa island. In: A report on the scientific survey of limestone caves in Okinawa Prefecture I. An Educational Committee in Okinawa Prefecture, pp. 97–153. (in Japanese)
Shimojana, M. (1979) Cave animals in Okinawa island and adjacent islands. In: A report on the scientific survey of limestone caves in Okinawa Prefecture II. An Educational Committee in Okinawa Prefecture, pp. 97–153. (in Japanese)
Shimojana, M. (1980) Cave animals in Sakishima islands (Miyako Group and Yaeyama Group). In: A report on the scientific survey of limestone caves in Okinawa Prefercture III. The Educational Committee in Okinawa Prefecture, pp.103–143. (in Japanese)
Shokita, S. (1979) The distribution and speciation of the inland water shrimps and prawns from the Ryukyu Islands – II. Bulletin of Sciences & Engineering Division, University of the Ryukyus (Mathematics & Natural Sciences), 28, 193–278. (In Japanese, with English summary)
Short, J. W. & Marquet, C. (1998) New records of freshwater Palaemonidae (Crustacea, Decapoda) from New Caledonia. Zoosystema, 20(2), 401–410.
Short, J. & Meek, P. (2000) New records of Macrobrachium (Crustacea: Decapoda: Palaemonidae) from Christmas Island, Indian Ocean. Records of the Western Australian Museum, 20(1), 81–86
Yoshigou, H., Tamura, H., Iwao, M. & Izumi, R. (2003) The cave fauna of Irabu-jima Island, Miya-ko Group, Ryukyu Islands, Japan. Hibakagaku, 210, 1–16.(In Japanese)