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aqua 7(4)_Damselfish n. sp.

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SINGLE PAPER

Volume 7, Issue 4 – November 2003

Gerald R. Allen and Joan E. Wright: Description of a new species of damselfish (Pomacentridae: Pomacentrus) from Rodrigues Island, Indian Ocean, pp. 133-138

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Description

SINGLE PAPER

Volume 7, Issue 4 – November 2003

Gerald R. Allen and Joan E. Wright: Description of a new species of damselfish (Pomacentridae: Pomacentrus) from Rodrigues Island, Indian Ocean, pp. 133-138

Abstract

A new species of pomacentrid fish is described from Rodrigues Island in the Mascarene Group, southwestern Indian Ocean. Specimens were collected during September and October 2001 as part of a general biodiversity survey of the Rodrigues lagoon environment. Pomacentrus rodriguesensis is described from 15 specimens 35.5-79.8 mm SL, collected from coral reefs and estuary tide pools in 9 to18 m. It appears to be related to other Pomacentrus with 14 dorsal spines, particularly to P. pikei from Mauritius and Réunion in the Mascarene Islands and P. indicus from the central Indian Ocean. These species have similar morphology but are easily distinguished by colour pattern differences. The new species is bluish grey with a yellow margin on the spinous dorsal fin, a dark spot on the upper pectoral fin base, and yellow pelvic fins. Juveniles possess a prominent ocellus on the basal half of the soft dorsal fin between the fifth and ninth rays.

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