Ribbon sawtail fish

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Ribbon sawtail fish

Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Stomiiformes
Family: Stomiidae
Genus: Idiacanthus
Species: I. fasciola
Binomial name
Idiacanthus fasciola
Peters, 1877

The ribbon sawtail fish, Idiacanthus fasciola, is a barbeled dragonfish of the family Stomiidae, found circumglobally in deep subtropical and temperate oceans between latitudes 40° N and 54° S. Length is up to 29 cm for the female, and 49 cm for the male.

Female ribbon sawtail fish have pelvic fins with 6 soft rays (which are absent in males), and a long filamentous barbel containing a leaf-shaped luminous lure which distinguishes it from the similar Idiacanthus atlanticus which has a thin filamentous barbel tip lure. There are no true gill rakers.

Coloration is dark brown or pale in the male and black or dark brownish black in the female. They are mesopelagic in depths exceeding 500 m, with females undergoing diel vertical migrations.

[edit] References

  • "Idiacanthus fasciola". FishBase. Ed. Ranier Froese and Daniel Pauly. May 2006 version. N.p.: FishBase, 2006.
  • Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8