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New Species of the Damselfish Genus Chromis (Pomacentridae) from Vietnam

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Abstract

A new species, Chromis oligactis from the coast of Khanh Hoa province (Vietnam, South China Sea) has been described, which is characterized by a moderately deep body (contained 2.2 times in the standard length), fin formula D XIV, 10; A II, 10; P i, 15–16; three spiniform procurrent rays of the caudal fin, 26 gill-rakers in the outer row on the first arch, and 19 perforated scales in the anterior lateral line. The holotype of the new species was caught at shallow depths, which is not typical for Indo-Pacific species of Chromis with 14 spinous rays in the dorsal fin.

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Fig. 1.

Notes

  1. There are discrepancies in the literature regarding the number of rays of P in C. analis: most authors (Shen and Chen, 1978; Randall et al., 1981; Aonuma and Yoshino, 2002) indicate 18–20 rays in P for this species, while Allen (1991) listed only 17 or 18.

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Authors and Affiliations

  1. Institute of Ecology and Evolution, Russian Academy of Sciences—IPEE RAS, Moscow, Russia

    A. M. Prokofiev

  2. Institute of Oceanology, Russian Academy of Sciences—IO RAS, Moscow, Russia

    D. A. Astakhov

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  1. A. M. Prokofiev
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  2. D. A. Astakhov
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Correspondence to A. M. Prokofiev or D. A. Astakhov.

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Translated by S. Avodkova

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Prokofiev, A.M., Astakhov, D.A. New Species of the Damselfish Genus Chromis (Pomacentridae) from Vietnam. J. Ichthyol. 63, 365–370 (2023). https://doi.org/10.1134/S0032945223020157

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