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

Sebastes diploprora (Gilbert, 1890)
Splitnose Rockfish
Family: Scorpaenidae

E-Fauna's interactive maps for fish are not yet available.

Species Information

Dorsal spines (total): 13; Dorsal soft rays (total): 11 - 14; Anal spines: 3; Anal soft rays: 5 - 8; Vertebrae: 26. Head spines strong - nasal, preocular, postocular, tympanic and parietal spines present, supraocular, coronal and nuchal spines absent (Ref. 27437). Toothed knob in front of each upper jaw, deep notch between jaws (Ref. 27437). Caudal fin moderately indented (Ref. 6885). A red rockfish, silver ventrally (Ref. 27437). Branchiostegal rays: 7 (Ref. 36715).

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

Biology

Species Biology

Common offshore, on soft bottoms (Ref. 2850). Young occur in shallow water, often at surface under drifting kelp (Ref. 2850). Viviparous, with planktonic larvae and pelagic juveniles (Ref. 36715, 34817). Environment: bathydemersal; marine; depth range 0 - 800 m (Ref. 6793), usually 91 - 579 m (Ref. 2850). Climate: deep-water; 60°N - 28°N

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

Distribution

Northeast Pacific: Alaska Peninsula to Cedros Island, Baja California and the Gulf of California in Mexico.

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

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Unlisted	Unlisted	Unlisted	Unlisted

BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Taxonomic and Nomenclatural Links

Genetic and lineage information (NCBI Taxonomy Browser)

Additional Range and Status Information Links

NatureServe Explorer
University of Alaska Museum

Additional Photo Sources

Flickr Image Search
Google Image Search
Images from Calphoto

Related Databases

fishbase

General References

FishBase References
Google Scholar Search

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: 2026-02-13 7:31:31 PM]

Disclaimer: The information contained in an E-Fauna BC atlas pages is derived from expert sources as cited (with permission) in each section. This information is scientifically based. E-Fauna BC also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Fauna BC is not responsible for the accuracy or completeness of the original information.