Myctophum affine   Lutken,  1892 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Fishbase

Size: 7.9 cm SL

Color: Dusky brown above, silvery below, specked with brown. Fins translucent, base of caudal blackish.

Ctenoid scales and upper part of opercle are rounded. Mouth oblique. End of upper jaw dilated, reaching nearly to angle of praeoperculum. Origin of dorsal much nearer to tip of snout than to root of caudal, above or slightly behind root of ventrals, its hindermost rays above foremost rays of anal. Adipose fin opposite to hindpart of anal. Pectorals nearly 2/3 of length of head, not reaching middle of ventrals. Ventrals not reaching vent. Caudal forked. Scales cycloid, thin, not spinous, deciduous.

Luminous organs: a minute round antorbital on the lower anterior orbital margin, 2 operculars, the larger dorsal one below the level of the ventral orbital margin, the smaller lower one behind angle of intermaxillary, partly covered by the margin of the praeopercle. 3 branchiostegals. 5 Maculae pectorales in a straight series between isthmus and ventrals, the 3 anterior ones are more distant than the posterior ones. Of the 2 Maculae subpectorales the posterior is situated before the lower base of the pectoral, the anterior before and below it, above the second Maculae pectorales. Maculae suprapectoralis above the space between them, slightly below the lateral line. 4 Maculae ventrales in a straight line between ventrals and anus. Number of Maculae anales anteriores and posteriores variable from 7 to 10 in the anterior group, which alone lies above the anal and 3-7 in the posterior group, which begins above the last anal ray or immediately behind the anal, the most frequent arrangement is after Brauer: 7 + (5-6), 8 + 5 and 9 + 5. The 2 Prc straightly or slightly obliquely behind each other. Arrangement and situation of the 3 Maculae supraanales and of Pol as in punctatum. There may be a supra caudal luminous patch.

Remarks: Values in above description denote proportions.

Synonym (s)
Scopelus affinis Lutken, 1892
Myctophum affine et opalinum Goode and Bean, 1895
Myctophum nitidulum Garman, 1899
Rhinoscopelus oceanicus Jordan and Evermann, 1904
Myctophum margaritatum Gilbert, 1905
Myctophum (Myctophum) affine Brauer, 1906
Myctophum affine Gilbert, 1908
Myctophum affine Zugmayer, 1911
Myctophum affine Max Weber, 1913
Myctophum affine Weber and de Beaufort, 1913
Myctophum opalinum Goode & Bean, 1896
Rhinoscopelus oceanicus Jordan & Evermann, 1903
Scopelus affinis Lutken, 1892

Common Name (s)
• Short-head Lantemfish
Economic Importance and Threats

Habitat:  Pelagic
Prey:  Planktonic copepods
Predator:  Bony fishes


• Lakshadweep Sea (Lat: 10.81) (Long: 73.65) INDIA
• Lakshadweep Sea (Lat: 10.4) (Long: 75.05) INDIA
• Lakshadweep Sea (Lat: 10.05) (Long: 74.16) INDIA
• Lakshadweep Sea INDIA

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at -
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • 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
  • 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 -
  • 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 -

Page last updated on:2011-10-12

Back to Search