ISSN 0375-1511 Rec. zool. Surv. India: 113(Part-2): 69-75, 2013 THE FUSILIERFISHES (FAMILY: CAESIONIDAE) OF ANDAMAN AND NICOBAR ISLANDS P.T. RAJAN AND c.R. SREERAJ Zoological survey of India, Andaman Nicobar Regional Centre Haddo, Port Blair-744102 Email
[email protected] INTRODUCTION often school in mixed species aggregations. It is Fusiliers are tropical Indo-Pacific marine common to see a school of 3-4 species of fusiliers. perciform fish of the family Caesionidae and they Species with similar markings, especially caudal are most associated with the reefs. Within the markings, tend to be found most often in the same family there are 4 genera and 21 species school. Fusiliers with a dark blotch at the tip of (Carpenter, 1988 and Allen & Erdmann, 2008). each caudal lobe, such as most species of They are colourful fishes; many have bright Pterocaesio and the species of Gymnocaesio, often yellow stripes and patches. The caesionidae are school together. The species with a black streak related to the family Lutjanidae, the snapper inside the caudal lobes, such as Caesio caerulaurea, fishes. The fusiliers possess unique C. varilineata and C. pterocaesio tile may be found in morphological features characteristic of their the same school. Caesio cuning and C. xanthonota feeding mode. They are specialized for with yellow caudal fins sometimes aggregate planktivorous feeding, while their nearest with one another. Dipterygonotus balteatus relatives, the snappers are typically benthic aggregate together with sardines, anchovies and carnivores. The fusiliers possess a jaw other nearshore pelagic species. morphology and body shape. They have a highly MATERIAL AND METHOD protrusible upper jaw which is an adaptation for Samples of Fusiliers (Family: Caesionidae) picking zooplankton from the water column.