Ichthyological Research

, Volume 55, Issue 1, pp 22–42 | Cite as

Revision of the genus Nuchequula with descriptions of three new species (Perciformes: Leiognathidae)

  • Seishi KimuraEmail author
  • Ryoko Kimura
  • Kou Ikejima
Full Paper


The leiognathid genus Nuchequula can be defined by the following combination of characters: mouth protruding downward; a narrow band of small, slender, villiform teeth in both jaws; teeth on upper jaw strongly recurved; the lateral line almost complete; a dark blotch on the nape. Although the genus was first established as a subgenus of Eubleekeria, it is here raised to generic level on the basis of the aforementioned morphological characters and recent molecular biological evidence. The genus comprises six valid species: N. blochii (Valenciennes 1835), distributed in India and Thailand; N. flavaxilla sp. nov., occurring only at Panay I., Philippines; N. gerreoides (Bleeker 1851), widely distributed in the Indo-West Pacific, from the Persian Gulf to Cape York, Australia, and north to Taiwan; N. glenysae sp. nov., from northern Australia and Ambon, Indonesia; N. longicornis sp. nov., from the Gulf of Thailand and Indonesia; and N. nuchalis (Temminck and Schlegel 1845), occurring in southern China including Taiwan, and southern Japan. Diagnostic characters of the species belonging to the genus are as follows: N. blochii—breast scaled, cheek naked, and a conspicuous black blotch distally on spinous dorsal fin; N. flavaxilla sp. nov.—breast naked, dorsolateral body surface fully scaled, preorbital spine bicuspid and not expanded distally, and second dorsal and anal fin spines conspicuously elongated; N. gerreoides—breast naked, anterior part of dorsolateral surface of body almost completely scaled, and second dorsal and anal fin spines not conspicuously elongated; N. glenysae sp. nov.—breast completely scaled, cheek scaled, and unique complicated sensory canals present on the suborbital area, extending to the nape; N. longicornis sp. nov.—breast naked, dorsolateral body surface fully scaled, preorbital spine bicuspid or tricuspid and extended distally, and second dorsal fin spines only conspicuously elongated; N. nuchalis—breast naked, anterior part of dorsolateral surface of body widely naked, and a conspicuous dark blotch distally on spinous dorsal fin.


Leiognathidae Nuchequula Nuchequula flavaxilla sp. nov. Nuchequula glenysae sp. nov. Nuchequula longicornis sp. nov. 



We are deeply indebted to M.E. Anderson (South African Institute for Aquatic Biodiversity) for his critical comments on the manuscript and great help with the English. We express our sincere gratitude to the following persons in collecting materials: K.-T. Shao (ASIZT); J. Maclaine (BMNH); W.N. Eschmeyer and D. Catania (CAS); A. Graham (CSIRO); T. Wongratana (CUMZ); I. Nakamura (FAKU); T. Peristiwady (Indonesian Institute of Science); H. Motomura (Kagoshima University Museum, Japan); P. Musikasinthorn and M. Juntaropakorn (Kasetsart University, Thailand); G. Duhamel, P. Pruvost, R. Causse, and C.J. Gregorio (MNHN); Y. Iwatsuki (MUFS); K. Matsuura, G. Shinohara, and K. Shibukawa (NSMT); K.-Y. Wu (NTUM); U. Satapoomin (Phuket Marine Biological Center, Thailand); J. Johnson (QM); B.D. Chung (Research Institute for Marine Fisheries, Haiphong, Vietnam); M.J.P. Oijen and K. Egmond (RMNH); H.-L. Wu (SFU); T. Bagarinao (Southeast Asian Fisheries Development Center, Aquaculture Department, Philippines); D.W. Nelson (UMMZ); P.V. Dunlap (University of Michigan, USA); W. L. Campos (University of Philippines in Visayas); T. Yoshino (URM); J.M. Clayton (USNM); M. Hayashi and K. Hagiwara (YCM); P. Bartsch and H.-J. Paepke (ZMB); P.K.L. Ng and K.K.P. Lim (ZRC); and K. Sakamoto (ZUMT). We also thank T. Yamashita (a previous student of FRLM) for his help in examination of specimens. This study was supported in part by Grants-in-Aid for Scientific Research (C) awarded to S.K. by the Japan Society for the Promotion of Science (14540642), by the Core University Program of the Japan Society for the Promotion of Science (Biodiversity Studies in the coastal areas of South East Asia), by the Multilateral Cooperative Research Program of the Japan Society for the Promotion of Science (Coastal Oceanography), and by the Global Environment Research Fund of the Ministry of Environment, Government of Japan.


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Copyright information

© The Ichthyological Society of Japan 2008

Authors and Affiliations

  1. 1.Fisheries Research LaboratoryMie UniversityWagu, ShimaJapan
  2. 2.AARM/School of Environment, Resources and DevelopmentAsian Institute of TechnologyKlong LuangThailand
  3. 3.Institute of Environmental EcologyIDEA Consultants, Inc.OoigawaJapan
  4. 4.Japan Society for the Promotion of Science (JSPS)BangkokThailand

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