Papers/Abstracts

Amphiprion pacificus, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, Samoa, and Wallis Island

Gerald R. Allen, Joshua Drew and Douglas Fenner

aqua, International Journal of Ichthyology, pp. 129-138, Volume 16, Issue 3 – 15 July 2010

Abstract

Amphiprion pacificus n. sp. is described on the basis of four specimens, 30.9-48.3 mm SL, from Wallis Island and Tonga in the western Pacific. Underwater photographs also reveal its presence on coral reefs of Fiji and Samoa. The new taxon is nearly identical in appearance to A. akallopisos from the Indian Ocean. Both species are generally pinkish brown, grading to orange or yellowish on the lower half of the head and side and possess a white stripe on the dorsal midline of the head extending from just anterior to the eye to the dorsal fin origin, continuing along the base of the dorsal fin to the caudal fin base. However, genetic results indicate that A. pacificus is more closely related to A. sandaracinos from Western Australia and the Indo-Malayan region, forming a moderately supported clade that is well differentiated from A. akallopisos. Aside from genetic differences A. sandaracinos differs from A. pacificus in having a uniform orange colouration and the white forehead stripe extends onto the upper lip. There also appears to be modal differences in the number of soft dorsal and anal rays (usually 19 vs. 18 and 13 vs. 12 respectively for A. pacificus and A. sandaracinos).

Full Text | PDF (220 KB)

REFERENCES

ALLEN, G. R. 1972. The Anemonefishes, their Classification and Biology. T. F. H. Publications, Neptune City, New Jersey, 288 pp.

ALLEN, G. R. 1980. Anemonefishes of the World. Aquarium Systems, Mentor, Ohio, 104 pp.

ALLEN, G.R. 2008. Conservation hotspots of biodiversity and endemism for Indo-Pacific coral reef fishes. Aquatic Conservation: Marine and Freshwater Ecosystems: 18: 541- 556.

ALLEN, G. R., DREW, J. & KAUFMAN, L. 2008. Amphiprion barberi, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, and Samoa. aqua, International Journal of Ichthyology 14 (3): 105-114.

BOWEN, B. W., MUSS, A., ROCHA, L. A. & GRANT, W. S. 2006. Shallow mtDNA coalescence in Atlantic pygmy angelfishes (genus Centropyge) indicates a recent invasion from the Indian Ocean. Journal of Heredity 97: 11-12.

COOPER, J. W., SMITH, L. L. & WESTNEAT, M.W. 2009. Exploring the radiation of a diverse reef fish family: Phylogenetics of the damselfishes (Pomacentridae), with new classifications based on molecular analyses of all genera. Molecular Phylogenetics and Evolution 52: 1-16.

DREW, J., ALLEN, G. R., KAUFMAN, L. & BARBER, P. H. 2008. Endemism and regional color and genetic differences in five putatively cosmopolitan reef fishes. Conservation Biology 22 (4): 965-975.

DREW, J. A., ALLEN, G. R. & ERDMANN, M. V. 2010. Congruence between mitochondrial genes and color morphs in a coral reef fish: population variability in the Indo-Pacific damselfish Chrysiptera rex (Snyder, 1909). Coral Reefs. Published online: DOI: 10.1007/s00338-010-0586-5.

FAUTIN, D. G. & ALLEN, G. R. 1992. Field guide to anemonefishes and their host sea anemones, Western Australian Museum, Perth, 160 pp.

LEE, W. J., HOWELL, W. H. & KOCHER, T. D. 1995. Structure and evolution of teleost mitochondrial control regions. Journal of Molecular Evolution 41: 54-66.

RONQUIST, F. & HUELSENBECK, J. P. 2003. MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19 (12): 1572-1574.

WALSH, P. S., METZGER, D. A. & HIGUCHI, R. 1991. Chelex-100 as a medium for simple extraction of DNA for PCR based typing from forensic material. Biotechniques 10: 506-513.

Previous post

The first records of four gobies (Pisces: Gobiidae) in the Red Sea

Next post

Volume 16, Issue 3, 15 July 2010

The Author

Rossella

Rossella

No Comment

Leave a reply