''Aristostomias'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
barbeled dragonfishes native to the ocean depths in the
Pacific,
Atlantic
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe an ...
and
Indian
Indian or Indians may refer to:
Peoples South Asia
* Indian people, people of Indian nationality, or people who have an Indian ancestor
** Non-resident Indian, a citizen of India who has temporarily emigrated to another country
* South Asia ...
oceans.
[
]
Red Light Bioluminescence
Production of red light bioluminescence
Similar to other deep-sea organisms that are capable of producing red light bioluminescence, including ''Pachystomias
''Pachystomias microdon'', the smalltooth dragonfish, is a species of barbeled dragonfish found in the oceans at depths of from . This species grows to a length of SL. This species is the only known species in its genus.
Red Light Biolumine ...
'', ''Aristostomias'' has large suborbital photophores that produce red-shifted cold light. In addition, ''Aristostomias'' has postorbital photophores that emit blue-green light.
Visual systems
Most meso- and bathypelagic fish are only able to see shortwave light, as their retinae possess rods with rhodopsins sensitive to blue light. ''Aristostomias'' is able to detect red-shifted light, as their retinae have long-wave absorbing rhodopsins and porphyropsins that can detect wavelengths of up to 590 nm. ''Aristostomias'' can detect red light at distances of up to 2 meters, suggesting that detection is used primarily for close-range intraspecific communication and short-range prey detection.
Species
There are currently six recognized species in this genus:
* ''Aristostomias grimaldii
''Aristostomias'' is a genus of barbeled dragonfishes native to the ocean depths in the Pacific, Atlantic and Indian oceans.
Red Light Bioluminescence
Production of red light bioluminescence
Similar to other deep-sea organisms that are capa ...
'' Zugmayer, 1913
* ''Aristostomias lunifer
''Aristostomias'' is a genus of barbeled dragonfishes native to the ocean depths in the Pacific, Atlantic and Indian oceans.
Red Light Bioluminescence
Production of red light bioluminescence
Similar to other deep-sea organisms that are capa ...
'' Regan
The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri'' ...
& Trewavas, 1930
* ''Aristostomias polydactylus
''Aristostomias'' is a genus of barbeled dragonfishes native to the ocean depths in the Pacific, Atlantic and Indian oceans.
Red Light Bioluminescence
Production of red light bioluminescence
Similar to other deep-sea organisms that are capa ...
'' Regan
The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri'' ...
& Trewavas, 1930
* ''Aristostomias scintillans
''Aristostomias'' is a genus of barbeled dragonfishes native to the ocean depths in the Pacific, Atlantic and Indian oceans.
Red Light Bioluminescence
Production of red light bioluminescence
Similar to other deep-sea organisms that are capa ...
'' ( C. H. Gilbert, 1915) (Shiny loosejaw)
* ''Aristostomias tittmanni
''Aristostomias'' is a genus of barbeled dragonfishes native to the ocean depths in the Pacific, Atlantic and Indian oceans.
Red Light Bioluminescence
Production of red light bioluminescence
Similar to other deep-sea organisms that are capa ...
'' W. W. Welsh, 1923 (Loosejaw)
* ''Aristostomias xenostoma
''Aristostomias'' is a genus of barbeled dragonfishes native to the ocean depths in the Pacific, Atlantic and Indian oceans.
Red Light Bioluminescence
Production of red light bioluminescence
Similar to other deep-sea organisms that are capa ...
'' Regan
The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri'' ...
& Trewavas, 1930
References
Stomiidae
Marine fish genera
Ray-finned fish genera
Taxa named by Erich Zugmayer
{{Stomiiformes-stub