Richardsonius egregius, Lahontan redside

Richardsonius egregius (Girard, 1858)

Lahontan redside
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Richardsonius egregius
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cypriniformes (Carps) > Leuciscidae (Minnows) > Pogonichthyinae
Eponymy: Sir John Richardson (1787–1865) was a Scottish naval surgeon, naturalist and Arctic explorer. [...] (Ref. 128868), visit book page.
More on author: Girard.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Temperate; 42°N - 37°N

Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North America: Lahontan and other interior basins in northern Nevada and northern California, USA including Humboldt, Walker, Carson, Truckee, Susan, Quinn and Reese River systems; Walker, Tahoe and Pyramid Lakes. Introduced elsewhere, including upper Sacramento River systems in California.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 5723); common length : 7.2 cm TL male/unsexed; (Ref. 12193); max. reported age: 5 years (Ref. 12193)

Short description Identification keys | Morphology | Morphometrics

Distinguished from a similar species Richardsonius balteatus by having less anal rays (8-9, rarely 10), longer snout, more slender body and less slender caudal peduncle (Ref. 86798).
Body shape (shape guide): fusiform / normal.

Biology     Glossary (e.g. epibenthic)

Occurs in margin of lakes and all types of stream habitats but usually in pools and slow runs (Ref. 86798).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

IUCN Red List Status (Ref. 130435: Version 2025-2)

  Least Concern (LC) ; Date assessed: 01 March 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search |