Ichthyological Research

, Volume 58, Issue 4, pp 388–392 | Cite as

Redescription of a rare deepwater cardinalfish, Epigonus ctenolepis Mochizuki and Shirakihara 1983, and comparison with related species (Perciformes: Epigonidae)

  • Makoto Okamoto
  • Atsushi Fukui
Short Report


A rare epigonid fish, Epigonus ctenolepis Mochizuki and Shirakihara 1983, is redescribed in detail on the basis of two type specimens (90.0–98.0 mm standard length, SL) and an additional specimen (128.8 mm SL) collected from Suruga Bay, Japan, and compared with related species of Epigonus. The species is characterized by the following combination of characters: first dorsal-fin rays VII, second dorsal-fin rays I, 9–10, vertebrae 10 + 15, pored lateral-line scales 52–53 (hypural end 48–49 + caudal fin 4), pyloric caeca 9–11, total gill rakers 24–25, presence of a pungent opercular spine, lateral-line scales ctenoid, absence of a maxillary mustache-like process, and absence of a rib on the last abdominal vertebra. A key to the Epigonus species characterized by a pungent opercular spine is provided.


Epigonus ctenolepis Suruga Bay Opercular spine Maxillary mustache-like process 



We thank Y. Kai (FAKU), I. Aoki (FUMT), M. Yabe and T. Kawai (HUMZ), K. Hartel (MCZ), T. Sato and S. Tomiyama (MSM), and K. Matsuura, G. Shinohara, and M. Nakae (NSMT) for loans of comparative materials, and J. Kawauchi (HUMZ) for providing literature. Thanks also go to M.R.S. Melo (MZUSP) for his critical reading of this manuscript with helpful comments.


  1. Abramov AA (1992) Species composition and distribution of Epigonus (Epigonidae) in the world ocean. J Ichthyol 32:94–108Google Scholar
  2. Ahlstrom EH, Butler JL, Sumida BY (1976) Pelagic stromateoid fishes (Pisces, Perciformes) of the eastern Pacific: kinds, distributions, and early life histories and observations on five of these from the North-west Atlantic. Bull Mar Sci 26:285–402Google Scholar
  3. Barnard KH (1927) Diagnoses of new genera and species of South African marine fishes. Ann Mag Nat Hist 20(115):66–79CrossRefGoogle Scholar
  4. de Buen F (1959) Notas preliminares sobre la fauna marina preabismal de Chile, con descripción de una familia de rayas, dos géneros y siete especies nuevos. Bull Mus Natl Hist Nat Santiago 27:171–201Google Scholar
  5. Giglioli EH (1880) Elenco dei mammiferi, degli uccelli e dei rettili ittiofagi appartenenti alla fauna italica e catalogo degli anfibi e dei pesci italiani. FirenzeGoogle Scholar
  6. Gilbert CH (1905) The deep-sea fishes of the Hawaiian Islands. Aquatic resources of the Hawaiian Islands. Bull US Comm 23:577–713Google Scholar
  7. Goode GB, Bean TH (1896) Oceanic ichthyology, a treatise on the deep-sea and pelagic fishes of the world, based chiefly upon the collections made by the steamers Blake, Albatross, and Fish Hawk in the north-western Atlantic, with an atlas containing 417 figures. Spec Bull US Natl Mus 2:1–553Google Scholar
  8. Hayashi M (2002) Epigonidae. In: Nakabo T (ed) Fishes of Japan with pictorial keys to the species, English edn. Tokai Univ Press, Tokyo, pp 780–781, 1545Google Scholar
  9. Leviton AE, Gibbs RH Jr, Heal E, Dawson CE (1985) Standards in herpetology and ichthyology: Part I. Standard symbolic codes for institutional resource collections in herpetology and ichthyology. Copeia 1985:802–832Google Scholar
  10. Mabee PM (1988) Supraneural and predorsal bones in fishes: development and homologies. Copeia 1988:827–838CrossRefGoogle Scholar
  11. Mayer GF (1974) A revision of the cardinalfish genus Epigonus (Perciformes, Apogonidae), with descriptions of two new species. Bull Mus Comp Zool 146:147–203Google Scholar
  12. Mochizuki K (1984) Family Epigonidae. In: Masuda H, Amaoka K, Araga C, Uyeno T, Yoshino T (eds) The fishes of the Japanese Archipelago. Tokai Univ Press, Tokyo, pp 146–147, pl 133Google Scholar
  13. Mochizuki K, Shirakihara K (1983) A new and rare apogonid species of the genus Epigonus from Japan. Jpn J Ichthyol 30:199–207Google Scholar
  14. Okamoto M (2011) A new species of deepwater cardinalfish, Epigonus mayeri, from the eastern Central Atlantic, and redescription of Epigonus heracleus Parin and Abramov 1986 (Perciformes: Epigonidae). Ichthyol Res 58:101–108CrossRefGoogle Scholar
  15. Okamoto M, Motomura H (2011) Epigonus carbonarius, a new species of deepwater cardinalfish (Perciformes: Epigonidae) from the Marquesas Islands, with a redefinition of the Epigonus oligolepis group. Ichthyol Res 58:155–160CrossRefGoogle Scholar
  16. Parin NV, Abramov AA (1986a) Two new species of the bathypelagic fishes of the genus Epigonus (Apogonidae) from the western tropical part of the Indian Ocean. Byull Mosk O-Va Ispyt Prir (MIOP) Otd Biol 91:53–57Google Scholar
  17. Parin NV, Abramov AA (1986b) Materials for a revision of the genus Epigonus Rafinesque (Perciformes, Epigonidae): species from the submarine ridges of the southern East Pacific and preliminary review of the “Epigonus robustus species-group”. Trans PP Shirshov Inst Oceanol 121:173–194Google Scholar
  18. Rafinesque CS (1810) Indice d’ittiologia siciliana; ossia, catalogo metodico dei nomi latini italiani, e siciliani dei pesci, che si rinvengono in Sicilia: disposti secondo un metodo naturale e seguito da un appendice che contiene la descrizione di alcuni nuovi pesci siciliani. Presso Giovanni del Nobolo, MessinaGoogle Scholar
  19. Whitley GP (1935) Studies in ichthyology. No. 9. Rec Aust Mus 19:215–250CrossRefGoogle Scholar

Copyright information

© The Ichthyological Society of Japan 2011

Authors and Affiliations

  1. 1.Seikai National Fisheries Research InstituteNagasakiJapan
  2. 2.Department of Fisheries, School of Marine Science and TechnologyTokai UniversityShizuokaJapan

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