Chaetodon falcula   Bloch,  1795 (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Actinopterygii
Order:Perciformes
Family:Chaetodontidae

Image copyrights: Randall, J.E.

Description
Size: 20.0 cm TL (male).

Color: Yellow, slightly lighter below; a black cross bar from nape through eye to lower margin of interopercle, a black wide triangular band from tip of first four or five dorsal spines and another from last three dorsal spines and front dorsal rays to below lateral line; 12-14 vertical blackish lines on body. Caudal peduncle with a black ring sometimes incomplete above. Dorsal yellowish with a submarginal black line and white margin. Anal yellowish with submarginal black line, white margin and two diffuse dark median bands posteriorly. Caudal yellowish with a subterminal blackish band. Pectoral and ventral yellowish white.

Head 2.8-2.9 in standard length, 3.3-3.4 in total length. Depth of body 1.6-1.8 in standard length, 1.9-2.2 in total length. Eye diameter 3.8-4.0 in head, 1.7-1.9 in pointed snout and equal to slightly convex interorbital space. Gape of mouth somewhat below lower border of eye. Pectoral fin 2/3 length of snout shorter than head. Ventral fin as long as pectoral. Lateral line arched, ending below end of soft dorsal fin. Spinous dorsal gradually increasing in length to the last, it being longest. Second and third anal fin spines almost equal in length.
Number of spines and rays in the dorsal fin: XII, 25-26; number of spines and rays in the anal fin: III, 21-22; number of rays in the pectoral fin: 15; number of spines and rays in the ventral fin: I, 5; number of scale rows along the midside of body from the upper corner of operculum to the midbase of caudal fin in the absence of lateral line: 27-30; number of horizontal scale rows usually counted from origin of the dorsal fin to the lateral line and from anal origin to the lateral line: 5-6+13-14.

Oviparous, dioecious, external fertilization, nonguarders, open water/substratum egg scatterers. Distinct pairing.

Generally seen in pairs or in small aggregations

Remarks: Values in above description denote proportions.


Synonym (s)
Anisochaetodon falcula (Bloch, 1795)
(Senior synonym)
Chaetodon dizoster Valenciennes, 1831
(Junior synonym)
Tetragonoptrus dizoster (Valenciennes, 1831)
(Junior synonym)
Chaetodon falcula Bloch, 1793
Anisochaetodon (Oxychaetodon) falcula Weber and de Beaufort, 1936

Common Name (s)
• Saddleback Butterflyfish (English)
• Sickle Butterflyfish (English)
• Galikokkamas (Mahl)
• Handupholimas (Mahl)
• Pakkikkadiya (Malayalam)
• Blackwedged Butterflyfish (English)
Economic Importance and Threats
Importance:  Commercial
(Aquarium, Ornamental fish)

Ecology
Habitat:  Reef Associated
Trophic Level:  Consumer
Prey:  Benthic algae/weeds, other plants, zoobenthos,

Biogeography


• Andaman and Nicobar Islands, Andaman Islands (Lat: 10) (Long: 93) INDIA
• Andaman and Nicobar Islands INDIA
• Lakshadweep, Kavaratti Atoll (Lat: 10.55) (Long: 72.63) INDIA (Record: 01/1991-06/1992)
• Lakshadweep, Bitra INDIA
• Lakshadweep, Agatti INDIA
• Lakshadweep, Kavaratti INDIA
• Lakshadweep, Minicoy INDIA
• Red Sea
• Lakshadweep INDIA
• INDIA
• Andaman and Nicobar Islands, Great Nicobar Island INDIA (Record: 08/2000-07/2003)
• Andaman and Nicobar Islands, Mahatma Gandhi Marine National Park INDIA
• Lakshadweep, Kavaratti Atoll INDIA
• Lakshadweep Islands INDIA (Record: 11/1993-01/1997)
• Lakshadweep, Minicoy Island (Lat: 8.11) (Long: 73.3) INDIA

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at - http://www.reefindia.org/
  • Rao, DV; Devi, K and Rajan, PT (2000) An account of ichthyofauna of Andaman and Nicobar Islands, Bay of Bengal Occasional paper no 178 Records of the Zoological Survey of India ZSI, Calcutta 1-434 Available at - NCL, Pune
  • UNEP World Conservation Monitoring Centre Available at - http://www.unep-wcmc.org/
  • James, C; O'Farrell, S; Hamylton, S; Ingwersen, C and Walker, R The coral reef resources of Mu Ko Surin national park, Thailand Coral Cay Conservation Available at - www.coralcay.org
  • Ohman, M; Rajasuriya, A and Olafsson, E (1997) Reef fish assemblages in north western Sri Lanka: Distribution patterns and influences of fishing practises Enviornmental Biology of Fishes Kluwer Academic Publishers 49 45-61
  • Heemstra, E; Heemstra, P; Smale, M; Hoopers, T and Pelicier, D (2004) Preliminary checklist of coastal fishes from the Mauritian island of Rodrigues Journal of natural history Taylor and Francis 38(23-24) 3315 - 3350 Available at - taylorandfrancis.metapress.com/ index/
  • Rao, DV and Devi, K (2004) A pictorial guide to butterfly and anemone fishes of Andaman and Nicobar Islands 76 pp Available at - NCL, Pune
  • Durville, P; Chabanet, P and Quod, JP (2003) Visual Census of the Reef Fishes in the Natural Reserve of the Glorieuses Islands (Western Indian Ocean) Western Indian Ocean J. Mar. Sci. WIOMSA 2 95-104
  • Chabanet, P and Patrick, D (2005) Reef Fish Inventory of Juan De Novas Natural Park (Western Indian Ocean) Western Indian Ocean Journal Marine Sciences 2005 WIOMSA 4 145-162
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • Anand, PEV and Pillai, NGK (2003) Habitat distribution and species diversity of coral reef fishes in the reefslope of the Kavaratti atoll, Lakshadweep, India Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 45(1) 88-98 Available at - NIO, Goa
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa
  • Rajaram, R; Srinivasan, M; Khan, SA and Kannan, L (2004) Ichthyofaunal diversity of great Nicobar Island, Bay of Bengal Journal of Indian fisheries association 31 13-26 Available at - NIO, Goa
  • Rajaram, R and Nedumaran, T (2009) Ichthyofaunal diversity in great Nicobar biosphere reserve, Bay of Bengal Journal of Threatened Taxa Wildlife Information Liaison Development Society 1(3) 166-169 Available at - http://threatenedtaxa.org/ZooPrintJournal/2009/March/o198526iii09166-169.pdf
  • Jones, S. (1969) Catalogue of fishes from the Laccadive Archipelago in the reference collections of the Central Marine Fisheries Research Institute. Bulletin of Central Marine Research Institute CMFRI, Cochin 8 1-35 Available at - http://eprints.cmfri.org.in/569/1/Bulletin_8.pdf
  • Murty, VS (1996) Marine ornamental fishes of India Proceedings of the Seminar on Fisheries - A Multibillion Dollar Industry, Madras CMFRI 23-34 Available at - http://eprints.cmfri.org.in/7786/1/678-Mur.pdf
  • Anand, PEV and Pillai, NGK (2004) Community organization of reef fishes in the live coral sub-habitat of Kavaratti atoll, Lakshadweep, India Indian Journal of Fisheries Indian Journal of Fisheries for the Indian Council of Agricultural Research 51(1) 87-95 Available at - http://eprints.cmfri.org.in/150/1/IJF_51_no.1_%2C2004_-_12.pdf
  • Murty, VS (2002) Marine ornamental fish resources of Lakshadweep CMFRI Special Publication CMFRI 72 1-134 Available at - http://eprints.cmfri.org.in/3536/1/Special_Publication_No_72.pdf
  • Jones, S and Kumaran, M (1959) The fishing industry of Minicoy Island with special reference to the tuna fishery Indian Journal of Fisheries Indian Council of Agricultural Research 6 (1) 30-57 Available at - http://eprints.cmfri.org.in/1866/1/Article_04.pdf
  • Murty, VS (2001) Ornamental fish resources of Lakshadweep Bulletins of the Geological Survey of India 56 103-111 Available at - http://eprints.cmfri.org.in/8574/1/Murty.pdf

Page last updated on:2011-06-28

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