Papers/Abstracts

Two new species of damselfishes (Pomacentridae: Chromis) from Indonesia

Gerald R. Allen and Mark V. Erdmann

aqua, International Journal of Ichthyology, pp. 121-134, Volume 15, Issue 3 – 20 July 2009

Abstract           

Two new species in the pomacentrid genus Chromis are described from Indonesian seas. Chromis albicauda is described from nine specimens, 79.6-133.7 mm SL, collected at Nusa Penida, off the east coast of Bali. It closely resembles C. analis, which ranges widely in the western Pacific. Both species have a similar yellow colouration, but C. albicauda has an abruptly white caudal fin compared to the yellow caudal of C. analis. It also differs in having a more densely scaled preorbital and a suborbital margin that is obscured by scales. Additional differences include a black blotch covering the anal opening, a larger size, and taller dorsal spines. The other new species, Chromis unipa, is described from five specimens, 42.8-50.4 mm SL collected in 45-60 m in Cenderawasih Bay, Western Papua, Indonesia. Diagnostic features include XIV,11 dorsal rays; II,11 anal rays; 18 pectoral rays; 3 spiniform caudal rays; 14-17 tubed lateral-line scales; body depth 2.0-2.2 in SL, and a distinctive colouration of alternating blue-grey and brassy yellow stripes on the side of the body, blue-grey ventrally on the head and body, bluish fins except for brown basal portion of the caudal fin, and a prominent black spot on the anal fin. It belongs to a complex of deep-dwelling Chromis possessing 14 dorsal spines and it appears most similar to C. degruyi, known from 85-120 m depths in the Caroline Islands. Although both species have similar counts for pectoral-fin rays, tubed lateral-line scales, and gill rakers, they differ with respect to modal numbers of soft dorsal and anal-fin rays as well as body depth and snout length. They also exhibit significant colour pattern differences.

Full Text | PDF (384 KB)

REFERENCES

ALLEN G. R. 1991. Damselfishes of the World. Aquarium Systems, Mentor, Ohio, 271 pp.

ALLEN, G. R. 1993. Two new species of damselfishes (Pomacentrus), with comments on the validity of two additional pomacentrid fishes. Revue française d’Aquariologie 20 (1): 21-26.

ALLEN, G. R. & ERDMANN, M. V. 2008. Pterocaesio monikae, a new species of fusilier (Caesionidae) from western New Guinea (Papua and Papua Barat Provinces, Indonesia. aqua, International Journal of Ichthyology 13 (3-4): 163-170.

ALLEN, G. R. & RANDALL, J. E. 2004. Two new species of damselfishes (Pomacentridae: Chromis) from Indonesian seas. aqua, Journal of Ichthyology and Aquatic Biology 9 (1): 17-24.

KUITER, R. H. & DEBELIUS, H. 2006. World Atlas of Marine Fishes. Ikan-Unterwasserarchiv, Frankfurt, 720 pp.

LECCHINI, D. & WILLIAMS, J.T. 2004. Description of a new species of damselfish (Pomacentridae: Chromis) from Rapa Island, French Polynesia. aqua, Journal of Ichthyology and Aquatic Biology 8 (3): 97-102.

MASUDA, H. & KOBAYASHI, Y. 1994. Grand Atlas of fish life modes. Tokai Universiy Press, Tokyo, 465 pp.

MOURA, R. L. DE. 1995. A new species of Chromis (Perciformes: Pomacentridae) from the southeastern coast of Brazil, with comments on other species of the genus. Revue française d’Aquariologie 21(3-4): 91-96.

PYLE, R. L., EARLE, J. L. & GREENE, B. D. 2008. Five new species of the damselfish genus Chromis (Perciformes: Labroidei: Pomacentridae) from deep coral reefs in the tropical western Pacific. Zootaxa. 1671: 3-31.

RANDALL, J. E. 1994. Two new damselfishes (Perciformes: Pomacentridae) from Arabian waters. Revue française d’Aquariologie 21(1-2): 39-48.

RANDALL, J. E. 2001. Four new damselfishes (Perciformes: Pomacentridae) from the Marquesas Islands. Copeia 2001 (no. 1): 92-107.

RANDALL, J. E. & MCCOSKER, J. M. 1992. Two new damselfishes of the genus Chromis (Perciformes: Pomacentridae) from the South Pacific. Proceedings of the California Academy of Sciences 47 (12): 329-337.

SENOU, H. & KUDO, T. 2007. A new species of the genus Chromis (Perciformes: Pomacentridae) from Taiwan and Japan. Bulletin of the National Museum of Natural Science, Series A, Supplement 1, 51-57.

Previous post

Volume 15, Issue 2, 15 April 2009

Next post

Heteroconger mercyae, a new species of garden eel (Congridae: Heterocongrinae) from West Papua, Indonesia

The Author

Rossella

Rossella

No Comment

Leave a reply