Polydactylus microstomus   (Bleeker,  1851) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: CSIRO

Size: 25 cm.

Color: A large black spot anteriorly on lateral line.

With 5 pectoral filaments, uppermost not reaching to (or extending slightly beyond) posterior tip of pectoral fin. Pectoral fin, rays short, 17-20% of SL, all rays branched except uppermost 1 or 2. Second dorsal spine long, 7-9% of SL. Well-developed swim bladder. Posterior margin of maxilla reaching to (or slightly short of) level of posterior margin of adipose eyelid. Lower tip of 7th proximal pterygiophore of 1st dorsal fin directed backwards. Lateral line squamation on caudal fin unbranched, extending to upper end of lower caudal fin lobe. Dorsal spines (total): 9 - 9, Dorsal soft rays (total): 12 - 14, Anal spines: 3, Anal soft rays: 11-12, Vertebrae: 10-14.

Synonym (s)
Polydactylus zophomus Jordan & McGregor, 1907
Polynemus microstoma Bleeker, 1851

Common Name (s)
• Smallmouth threadfin (English)
Economic Importance and Threats

Habitat:  Demersal
Prey:  Feeds mainly on small crustaceans (especially shrimps), fishes and benthic organisms


• Tamil Nadu INDIA

Literature Source(s)
  • Hiroyuki, M (2004) Annotated Checklists of Fishes: Family Polynemidae Rafinesque 1815 Annotated Checklists of Fishes 32 1-18 Available at - NCL, Pune
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org

Page last updated on:2010-05-04

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