Abstract
A new species of pipefish, Syngnathus chihiroe sp. nov., (Syngnathidae), is described on the basis of a single specimen collected off Yakushima Island (East China Sea), southern Japan in a depth of 160–162 m. The new species is readily distinguished from all congeners by the combination of the following characters: dorsal-fin rays 38, pectoral-fin rays 17, trunk rings 18, tail rings 40, subdorsal rings 3.25 + 10.0 = 13.25, head length 8.7 in standard length, snout length 2.3 in head length and snout depth 3.7 in snout length. The new species is similar to Syngnathus schlegeli Kaup 1853, the only other northwestern Pacific Ocean congener, characterized by dorsal-fin rays 30–47, trunk rings 18–20 and tail rings 38–46. However, it differs from S. schlegeli in having a greater number of pectoral-fin rays (17 in the former vs. 11–15 in the latter), and a short deep snout (snout length 2.3 in head length and snout depth 3.7 in snout length vs. 1.6–2.0 and 5.6–11.3, respectively).
References
Allen, G.R. & Kuiter, R.H. (2004) Dunckerocampus naia, a new species of pipefish (Pisces: Syngnathidae) from the western Pacific. aqua, Journal of Ichthyology and Aquatic Biology, 9 (1), 1–6.
Amor, M.M.B., Salem, M.B., Souissi, J.B. & Capapé, C. (2007) On the occurrence of the deep-snouted pipefish Syngnathus typhle Linnaeus, 1758 (Osteichthyes: Syngnathidae) in Tunisian waters (Central Mediterranean). Acta Adriatica, 48 (1), 15–23.
Artüz, M.L. (2015) On the first record of Syngnathus phlegon Risso, 1827 from the Sea of Marmara, Turkey. International Journal of Science and Research, 4 (2), 1101–1103.
Dawson, C.E. (1977) Synopsis of syngnathine pipefishes usually referred to the genus Ichthyocampus Kaup, with description of new genera and species. Bulletin of Marine Science, 27 (4), 595–650.
Dawson, C.E. (1979) Notes on western Atlantic pipefishes with description of Syngnathus caribbaeus n. sp. and Cosmocampus n. gen. Proceedings of the Biological Society of Washington, 92 (4), 671–676.
Dawson, C.E. (1982) Family Syngnathidae. Fishes of the Western North Atlantic. Memoirs of the Sears Foundation of Marine Research, 1 (part 8), 1–172.
Dawson, C.E. (1985) Indo-Pacific Pipefishes (Red Sea to the Americas). Gulf Coast Research Laboratory, Ocean Springs, vi + 230 pp.
Dawson, C.E. (1986) Syngnathidae. In: Whitehead, P.J.P., Bauchot, M.-L., Hureau, J.-C., Nielsen, J. & Tortonese, E. (Eds.), Fishes of the North-eastern Atlantic and the Mediterranean. Vol. II. UNESCO, Paris, pp. 628–639.
Eichwald, C.E. (1838) Einige Bemerkungen über das Kaspische Meer. Archiv für Naturgeschichte, 4 (Part 1), 97–112.
Eschmeyer, W.N., Fricke, R. & van der Laan, R. (Eds.) (2016) Catalog of fishes: Genera, species, references. Electronic version. Available from: http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp. (accessed 16 November 2016)
Fritzsche, R.A. (1980) Revision of the eastern Pacific Syngnathidae (Pisces: Syngnathiformes), including both recent and fossil forms. Proceedings of the California Academy of Sciences, Series 4, 42 (6), 181–227.
Kolpakov, E.V. (2007) New information on the fauna of warm-water fishes of Northern Maritime Territory. Journal of Ichthyology, 47 (8), 673–675.
https://doi.org/10.1134/S0032945207080152Kuiter, R.H. (2009) Seahorses and their Relatives. Aquatic Photographics, Seaford, 334 pp.
Kullander, S.O. (2016) G. J. Billberg’s (1833) ‘On the ichthyology, and description of some new fish species of the pipefish genus Syngnathus’. Zootaxa, 4066 (2), 101–124.
https://doi.org/10.11646/zootaxa.4066.2.1Naseka, A.M. & Bogutskaya, N.G. (2009) Fishes of the Caspian Sea: zoogeography and updated check-list. Zoosystematica Rossica, 18 (2), 295–317.
Ni, I.-H. & Kwok, K.-Y. (1999) Marine fish fauna in Hong Kong waters. Zoological Studies, 38 (2), 130–152.
Paulus, T. (1992) Syngnathus safina n. sp. and first record of S. macrophtalmus [sic] Duncker 1915 from the Gulf of Aqaba, Red Sea (Pisces: Osteichthyes: Syngnathidae). Senckenbergiana Biologica, 72 (1/3), 27–33.
Quantum GIS Development Team (2014) Quantum GIS Geographic Information System. Open Source Geospatial Foundation Project. Available from: http://www.qgis.org/ (accessed 11 June 2014)
Senou, H. (2013) Syngnathidae. In: Nakabo, T. (Ed.), Fishes of Japan with Pictorial Keys to the Species. 3rd Edition. Tokai University Press, Hadano, pp. 615–635, 1909–1913.
Smith, J.L.B. (1963) Fishes of the family Syngnathidae from the Red Sea and the western Indian Ocean. Ichthyological Bulletin, Department of Ichthyology, Rhodes University, 27, 515–543, pls. 75–82.