Papers/Abstracts

A new species of triplefin (Perciformes: Tripterygiidae), Enneapterygius senoui, from Japan with a discussion of its in situ colour pattern

Hiroyuki Motomura, Shigeru Harazaki and Graham S. Hardy

aqua, International Journal of Ichthyology, pp. 5-14, Volume 10, Issue 1 – June 2005

Abstract

Enneapterygius senoui, a new species of small triplefin, is described on the basis of six specimens collected from Hachijo-jima Island, the Izu Islands and Chichi-jima Island, Ogasawara Islands, Japan. This species is distinguished from other congeners by the following combination of characters: 14 or 15 (mode 15) second dorsal fin spines; 20 or 21 (21) pored lateral line scales; 17-19 (17) notched lateral line scales; 2 or 3 (2) scale rows above first pored lateral line scale; 2 or 2 1/2 (2 1/2) scale rows above last pored lateral line scale; 3 or 4 (3) scale rows below first notched lateral line scale; 4-5 + 1-2 + 4-5 mandibular pores; nasal tentacle unbranched flat, broad distally; a broad vertical white band on caudal peduncle behind third dorsal fin, and blue lines or spots on head in both sexes; anterior two-thirds of body and fins black, and posterior tip of anal fin yellow in melanistic males; reddish spots on head and body, and anal fin yellow basally in pale males and females. The species is further confirmed from Izu-oshima Island and the east coast of Izu Peninsula on the basis of underwater photographs. In situ colour pattern and variations are also described and discussed.

Full Text | PDF (320 KB)

REFERENCES

Fowler, H. W. 1946. A collection of fishes obtained in the Riu Kiu Islands by Captain Ernest R. Tinkham, A.U.S. Proceedings of the Academy of Natural Sciences of Philadelphia, 98: 123-218.

Fricke, R. 1987. A new species of Enneapterygius from Miyake-Jima, Izu Islands, Japan. (Teleostei: Tripterygiidae). Senckenbergiana Maritima, 19 (5-6): 331-338.

Fricke, R. 1994. Tripterygiid fishes of Australia, New Zealand and the southwest Pacific Ocean (Teleostei). Koeltz Scientific Books, Königstein, Germany, ix + 585.

Fricke, R. 1997. Tripterygiid fishes of the western and central Pacific, with descriptions of 15 new species, including an annotated checklist of world Tripterygiidae (Teleostei). Koeltz Scientific Books, Königstein, Germany, ix + 607.

Hubbs, C. L. & K. F. Lagler. 1947. Fishes of the Great Lakes region. Cranbrook Institure of Science Bulletin, (26): i-xi + 1-186.

Jordan, D. S. & J. O. Snyder. 1902. A review of the blennoid fishes of Japan. Proceedings of the United States National Museum, 25 (1293): 441-504.

Leviton, A. E., Gibbs, R. H. Jr, Heal, E. & C. E. Dawson. 1985. Standards in herpetology and ichthyology: Part I. Standard symbolic codes for institutional resource collections in herpetology and ichthyology. Copeia, 1985 (3): 802-832.

Randall, J. E. & E. Clark. 1993. Helcogramma vulcana, a new triplefin fish (Blennioidei: Tripterygiidae) from the Banda Sea, Indonesia. Revue Française d’Aquariologie, 20 (1): 27-32.

Randall, J. E., Ida, H., Kato, K., Pyle, R. L. & J. E. Earle. 1997. Annotated checklist of the inshore fishes of the Ogasawara Islands. National Science Museum Monographs, No 11: i-iii + 1-74.

Rüppell, W. P. E. S. 1835. Neue Wirbelthiere zu der Fauna von Abyssinien gehörig. Fische des Rothen Meeres. Main, Frankfurt, Germany, 28 pp.

Schultz, L. P., Chapman, W. M., Lachner, E. A. & L. P. Woods. 1960. Fishes of the Marshall and Marianas islands. Vol. 2. Families from Mullidae through Stromateidae. Bulletin of the United States National Museum, No 202, 2: i-ix + 1-438.

Senou, H., Shinohara, G., Matsuura, K., Furuse, K., Kato, S. & T. Kikuchi. 2002. Fishes of Hachijo-jima Island, Izu Islands group, Tokyo, Japan. Memoirs of the National Museum, (38): 195-237.

Shen, S.-C. 1994. A revision of the tripterygiid fishes from coastal waters of Taiwan with descriptions of two new genera and five new species. Acta Zoologica Taiwanica, 5 (2): 1-32.

Previous post

The sunfish Mola mola as an attachment surface for the Lepadid Cirriped Lepas anatifera – a previously unreported association

Next post

The ogre catfish: prey scooping by the auchenipterid Asterophysus batrachus

The Author

Rossella

Rossella

No Comment

Leave a reply