Xenomystax trucidans   Alcock,  1894 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Max length: 64.5 cm TL (male/unsexed)

Color: Blue black; mucus pores of head, margin of gill opening and lateral line brilliant white; pectoral with a narrow whitish edge and tip.

Head more than 4 in total length, trunk about 3.5 in tail. The depressed slender snout is a little more than one third of head in length and nearly four times the diameter of eye. Long slit-like mucus pores on the margin of upper jaw and a series of pores along mandible and preopercle. The anterior nostril is a long sub-tubular slit close to the tip of snout, the posterior is a wide elliptical foramen situated almost superiorly at the end of middle third of snout. Mouth wide, reaching about an eye diameter behind the eye. Hind end of maxillary nearer to the tip of gill opening than to the tip of snout. Teeth in jaws in wide bands, mostly depressible; maxillary teeth divided by a deep groove running entire length of the jaw, those on inner side of groove long, close set, in a single series; mandible with much narrower and shallower groove, the inner series small and directed inwards; tip of mandible enlarged and fits into an edentulous depression just behind head of vomer; teeth on head of vomer and knob of mandible slightly larger than those of the side of jaw. Gill openings wide, separated by a narrow interspace. Origin of dorsal fin just before a level from gill openings. Pectoral fin narrow, more than half length of snout.

Remarks: Values in above description denote proportions.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Demersal


• Lakshadweep (Lat: 8) (Long: 75) INDIA
• West Coast, Malabar INDIA
• Lakshadweep Sea INDIA

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at - http://www.reefindia.org/
  • Alcock, A (1994) A descriptive catalogue of the Indian deep sea fishes in the Indian museum Oxford and IBH Publishing Co. Pvt. Ltd.,New Delhi 1-211 Available at - CMFRI Library, Cochin- 682018
  • 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
  • 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

Page last updated on:2010-03-26

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