Gonostoma elongatum   Gunther,  1878 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Rivo

Size: 19 cm.

Color: Black with a broad silvery, lateral band. Fins translucent.

Nostrils nearer to eye than to point of snout. Suborbital bone broad, dilated, covering about anterior half of cheek. Gape of mouth exceedingly wide. Intermaxillary reaching to vertical through anterior border of eye. Maxillary curved, extending to angle of praeoperculum. Lower jaw prominent with a pointed symphysis. Origin of short dorsal and long anal opposed, behind middle of body and slightly behind anus, before the beginning of the last 1/3 of the length. Anal ending behind adipose fin, near forked caudal. Ventrals before middle of body, not reaching the anal. Pectorals short, not extending to ventrals. No scales. Intermaxilla with 2-4, maxilla with 12-15 curved larger teeth, the two hindermost directed some what backward, the space between them filled with smaller teeth. Mandible with about 10 large, slightly curved teeth, numerous smaller ones between them. Vomer edentulous. Palatines with a series of 3-5 teeth. Luminous organs, a black suborbital organ, ventrally connected with a yellowish organ obliquely directed backward. One dorsally at the hindborder of the praeoperculum, ventrally connected with a long yellow glandular patch. One behind the end of the maxilla, an inconspicuous one on each side behind the symphysis, 9 between the branchiostegal rays. A ventral series of 4 between isthmus and pectorals, 10-11 between pectorals and ventrals, 5 between ventrals and anal, 21 between origin of ventrals and caudal, the third of which is situated higher up outside the series 13 in a lateral series between operculum and vertical through anal, the anterior outside the series far above the pectorals. Ventrally on each side above the anterior caudal rays 2 glandular patches behind other. Dorsally above them a similar organ.

Protandric hermaphrodite, external fertilization, non guarders, oviparous with planktonic eggs and larvae.

Remarks: Values in above description denote proportions.

Synonym (s)
Gonostoma elongatum Alcock, 1891
Cyclothone elongata Goode and Bean, 1895
Cyclothone elongata Jordan and Evermann, 1896
Gonostoma elongatum Brauer, 1906
Gonostoma elongatum Max Weber, 1913
Cyclothone elongata (Gunther, 1878)
(Senior synonym)
Cyclothone rhodadenia Gilbert, 1905
(Junior synonym)
Gonostoma polyphos Zugmayer, 1911
(Junior synonym)
Gonostoma rhodadenia (Gilbert, 1905)
(Junior synonym)
Neostoma elongatum (Gunther, 1878)
(Senior synonym)
Sigmops elongatum (Gunther, 1878)
(Senior synonym)
Sigmops elongatus (Gunther, 1878)
(Senior synonym)
Sigmops stigmaticus Gill, 1883
(Junior synonym)

Common Name (s)
• Longtooth Anglemouth (English)
• Bristle-mouth
Economic Importance and Threats

Habitat:  Pelagic
Trophic Level:  Secondary Consumer
Prey:  Crustaceans and small fishes
Predator:  Beryx splendens


• Lakshadweep Sea INDIA
• 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/
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Weber, M; Beaufort, LF (1965) The fishes of the Indo-Australian Archipelago E.J. Brill, Leiden, Holland 2 404 pp 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
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • 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
  • 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
  • Pillai, PKM and Augustine, SK (2000) A code list of common marine living resources of the Indian seas CMFRI Special Publication No.12 CMFRI 1-115 Available at - eprints.cmfri.org.in/3975/1/Special_Publication_No_12_Revised.pdf

Page last updated on:2011-10-12

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