Article text: Wikipedia contributors, Slender sculpin (source revision). Licensed under CC BY-SA 4.0. Retrieved 2026-10-11.
Slender Sculpin
Cottus tenuis
Cottidae · freshwater water fish
1 minute read · Species guide

About Slender Sculpin
The slender sculpin (Cottus tenuis) is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is endemic to the United States, occurring only in the upper Klamath Lake river drainage in Oregon. It is found along lake shores over mud, sand and gravel, and in the riffles, runs and pools of streams and rivers. It reaches a maximum length of 9 cm.
Diet and feeding
The FishTraits compilation records these diet categories for this species: invertebrates or larval fish. These are broad categories, not a claim that every individual consumes every example in a category.
Reported feeding positions include bottom feeding. The compilation combines published observations; diets can vary with age, locality, and available food.
Habitat preferences
Reported habitat associations include streams and small rivers, creeks.
The source records associations with muck, clay or silt, sand, gravel, cobble. An association indicates reported use, rather than an exclusive requirement.
Reproduction and parental care
The reproductive-guild classification includes guarding eggs or young at a spawning substrate or nest.
Size and recorded longevity
FishTraits reports a maximum total length of 9 centimetres. Some entries use an estimated asymptotic length; this value should not be treated as a certified record catch.
Range
Where it lives
Share of records by state
Habitat
Water and movement
- Water
- WoRMS records this species in fresh water.
- Migration
- Not migratory
Classification
Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Superclass
- Actinopterygii
- Class
- Teleostei
- Order
- Scorpaeniformes
- Family
- Cottidae
- Genus
- Cottus
- Species
- Cottus tenuis
- ITIS TSN
- 167254
- WoRMS AphiaID
- 1019174
- GBIF key
- 2334150
Common questions about Slender Sculpin
What is the scientific name of Slender Sculpin?
Does Slender Sculpin live in fresh water or salt water?
Where has Slender Sculpin been recorded in the United States?
Closest relatives
Other Cottus species
Same family