Jump to content

Double angler

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Rkaufman13 (talk | contribs) at 18:25, 7 November 2020 (fixed broken link). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Double angler
Diceratias bispinosus
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Diceratiidae

Regan & Trewavas, 1932
Genera

Bufoceratias
Diceratias
See text for species.

Double anglers are a family, Diceratiidae, of anglerfishes. They are found in deep, lightless waters of the Atlantic, Indian and western Pacific Oceans.[1]

They are easily distinguished from other anglerfishes by their possession of a second light-bearing dorsal fin spine immediately behind the illicium (the bioluminescent lure present in other anglerfishes).

As in other anglerfishes, the male is very much smaller than the female, and after a larval and adolescent free-living stage, spends the rest of his life parasitically attached to a female.

Species in this family are known almost entirely from adolescent females; only two larvae, one adult female, and one adult male have been found.[2]

The first specimen of the two-rod anglerfish (first called Ceratias bispinosus) was collected during the expedition of HMS Challenger during 1873–1876. It was first described by Albert Günther in 1887 in volume 22 of "Report on the deep-sea fishes collected by H. M. S. Challenger during the years 1873–76. Report on the Scientific Results of the Voyage of ADD" [3]

Species

The six species in two genera are:

See also

References

  1. ^ Froese, Rainer; Pauly, Daniel (eds.). "Family Diceratiidae". FishBase. February 2006 version.
  2. ^ Theodore W. Pietsch (2005). "Diceratiidae". Tree of Life web project. Retrieved 4 April 2006.
  3. ^ Günther, Albert C. L. G. (Albert Carl Ludwig Gotthilf) (1887). Report on the deep-sea fishes collected by H.M.S. Challenger during the years 1873-1876. Smithsonian Libraries. London.