E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia

Chauliodus macouni Bean, 1890
Pacific Viperfish
Family: Sternoptychidae
Photo of species

© Aaron Baldwin  Email the photographer   (Photo ID #2178)

Source: Distribution of Chauliodus macouni as compiled by Aquamaps
E-Fauna's interactive maps for fish are not yet available.

Species Information

Dorsal spines (total): 0; Dorsal soft rays (total): 5 - 7; Anal spines: 0; Anal soft rays: 9 - 14; Vertebrae: 56 - 62. First dorsal fin ray much produced in a long filament terminating in a minute flap; adipose fin large, placed well back over posterior part of anal, higher posteriorly; pelvic fins long and narrow (Ref. 6885). No true gill rakers (Ref. 6885). Dark brown to black in color (Ref. 6885). Branchiostegal rays: 16-21 (Ref. 35898).

Source: FishBase. Eschmeyer, W.N., E.S. Herald and H Hammann. 1983 . (Ref. 2850)


Species Biology

Migrate upward at night (Ref. 28499). Feed on small planktonic crustaceans, arrow worms and fish (Ref. 28499). Has photophores on belly arranged in a row (Ref. 2850). Oviparous, with planktonic eggs and larvae (Ref. 35898). Also caught with bottom trawls. bathypelagic; marine; depth range 25 - 4390 m (Ref. 5610). Deep water.

Source: FishBase. Eschmeyer, W.N., E.S. Herald and H Hammann. 1983 . (Ref. 2850)



Northwest Pacific: Navarin Canyon in the Bering Sea to Japan. Eastern Pacific: Gulf of Alaska to central Baja California (Ref. 35898) and the Gulf of California.

Source: FishBase. Eschmeyer, W.N., E.S. Herald and H Hammann. 1983 . (Ref. 2850)

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
NativeSNRNo StatusNot Listed
BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Additional Range and Status Information Links

Additional Photo Sources

General References

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2021. E-Fauna BC: Electronic Atlas of the Fauna of British Columbia [efauna.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-04-22 9:05:01 AM]
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© E-Fauna BC 2021: An initiative of the Spatial Data Lab, Department of Geography, UBC