Diaphus coeruleus   (Klunzinger,  1871) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Size: 15 cm.

Color: Silvery, back blackish blue. Fins hyaline.

Upper jaw slightly dilated at its hinder end, which surpasses the eye by more than one eye diameter. Origin of dorsal above origin of ventrals or slightly before or behind it, in the middle of the distance between snout and adipose fin or behind it. Origin of anal somewhat behind end of dorsal, before last 1/3 of length, ending below adipose fin. Pectorals far below middle of height, not reaching origin of ventrals (after Brauer: reaching on ventrals). Caudal forked. Scales cycloid.

Luminous organs divided by a black seotum. An antorbital organ, narrowed between eye and nostril, slightly dilated dorsally, more dilated ventrally, extending on ventral border of eye. 2 operculars, quite close above each other, the ventral one, which is smaller, behind end of upper jaw, 3 branchiostegals, 5 Maculae pectorales, the fourth outside the series above the space between the third and the fifth. The 2 Maculae subpectorales in an oblique line, the superior at the ventral base of the pectoral, the inferior above and behind the first Maculae pectorales. Maculae suprapectoralis above base of pectoral, nearer to it than to lateral line. 5 Maculae ventrales, the second and third outside the series, the third higher than the second. II Maculae anales anteriores and posteriores in two groups, the anterior above the anal with 6 organs, the anterior and posterior of which are situated higher up outside the series, the posterior group behind anal contains 5 organs, separated from them the 4 Prc, which are arranged in a continous, semicircular series, the hindermost in the middle between lateral line and ventral profile. Maculae supraventralis between lateral line and ventral, nearer to lastnamed, the 3 Maculae supraanales in an oblique ascending line, the most ventral between last Maculae ventrales and anus, the uppermost far distant from lateral line, as also the Pol, which lies close above and behind the last organ of the anterior Maculae anales anteriores and posteriores.

Synonym (s)
Diaphus caeruleus (Klunzinger, 1871)
Myctophum caeruleum (Klunzinger, 1871)
Scopelus caeruleus Klunzinger, 1871
Scopelus engraulis Gunther, 1887
Scopelus engraulis Alcock, 1891
Scopelus (Nyctophus) caeruleus Lutken, 1892
Lampanyctus caeruleus Goode and Bean, 1896
Myctophum (Diaphus) caeruleum Brauer, 1906
Diaphus caeruleus Max Weber, 1913
Myctophum caerulum (Klunzinger, 1871)
Scopelus coeruleus Klunzinger, 1871

Common Name (s)
Economic Importance and Threats

Habitat:  Pelagic, Estuarine


• Andaman Sea
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Post, A and Svoboda, A (1980) Strandfunde mesopelagischer Fische aus dem Golf von Akaba. Archiv fuer Fischereiwissenschaft 30 137-143 Available at - ZOOR11700056166
  • 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
  • Talwar, PK (1990) Fishes of Andaman and Nicobar Islands: A synoptic survey Journal of the Andaman Science Association Andaman Science Association, Port Blair 6(2) 71-102 Available at - NIO,Goa

Page last updated on:2011-07-15

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