Zenarchopterus dispar   (Valenciennes,  1847) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Johnny Jensen

Size: 16.5 cm.

Color: In preserved specimens brownish above, lighter below, with a silvery lateral band bordered above by a black line, which broadens to a regular band below the dorsal. Fins more or less dusky.

Compressed, the breadth of the body going somewhat more or less than 1.5 in its height. Height 9-12, 10-13.8 in length with caudal. Head from tip of upper jaw to branchial opening 2.4-3 in trunk. Entire head 1.9-2.1, 2.2-2.3 in length with caudal. Length of lower jaw beyond extremity of upper jaw about 3-3.5 in length, 3.5 to about 4 in length with caudal. Eye 1.5-1.7 in postorbital part of head and 1.2-1.6 in inter-orbital space. Triangular part of upper jaw somewhat broader than long, scaly above. Praeorbital more or less rounded, much shorter than eye. Teeth small, conical, in bands, the band in the upper jaw is broader than that in the lower jaw. Origin of anal about below third dorsal ray. Base of anal 2-2.4 in length of dorsal. Dorsal rounded in females, in males more pointed, the 4th, 5th and 6th ray being prolonged and the 4th or 5th moreover thickened. Anal of females slightly concave, in males the 6th and 7th ray enormously enlarged and thickened, especially the 6th ray, which oftern reaches to the end of the caudal. Pectorals equal to or somewhat longer than head without snout. Ventrals half as long as pectorals. Base of ventrals about twice nearer to caudal than to corner of mouth. Caudal obtusely rounded.

Remarks: Values in above description denote proportions.

Synonym (s)
Hemirhamphus dispar Cuvier and Valenciennes, 1846
Hemiramphus dispar Bleeker, 1854
Zenarchopterus dispar Bleeker, 1866
Hemirhamphus dispar Gunther, 1866
Zenarchopterus dispar Bleeker, 1872
Hemirhamphus dispar Day, 1888
Zenarchopterus vaisiganis Jordan and Seale, 1906
Zenarchopterus dispar Jordan and Seale, 1907
Zenarchopterus dispar Gunther, 1909
Zenarchopterus dispar Kendall and Goldsborough, 1911

Common Name (s)
• Viviparous Halfbeak
Economic Importance and Threats
Importance:  Commercial

Habitat:  Reef Associated, Estuarine


• Andaman Nicobar Islands, Andaman INDIA
• West Bengal (Lat: 21.45) (Long: 87.9) INDIA

Literature Source(s)
  • 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 (1922) The fishes of the Indo-Australian Archipelago Print times, Pataudi house, Daryaganj, New Delhi 4 410 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
  • 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
  • Das, P; De, SP; Bhowmik, RM; Pandit, IK; Sengupta, R; Nandi, AC; Thakurta, SC and Saha, S (2007) Piscine diversity of West Bengal Fishing chimes 27(5) 15-28 Available at - NIO, Goa

Page last updated on:2012-01-09

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