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C-O Sole
Common

C-O Sole

Pleuronichthys coenosus

The C-O sole is a flatfish found in Pacific waters, characterized by distinctive markings that resemble the letters C and O. It's a bottom-dwelling species that feeds on small invertebrates and worms.

The record

C-O Sole at a glance

Scientific name
Pleuronichthys coenosus
Typical size
8-14 inches, 0.5-2 lbs
Water
Saltwater
Habitat
Offshore
Rarity in the Fishdex™
Common
Where it lives

Habitat

This species inhabits sandy and muddy bottoms in deeper waters along the Pacific coast from California to Alaska. Anglers occasionally catch them while bottom fishing for other species, though they are not typically targeted. They are found at depths ranging from shallow waters to several hundred feet deep.

Catch one and it is yours

Log a c-o sole through the Cobia Camera and this entry fills in with your photo, your personal best, and the exact conditions on the day. The app also carries the slot and season rules for wherever you are standing.

How the Fishdex™ works
Questions

C-O Sole questions people ask

C-O Sole is Pleuronichthys coenosus.

A typical c-o sole runs 8-14 inches, 0.5-2 lbs. Cobia records the length and weight of every c-o sole you log and keeps your personal best on its Fishdex entry.

This species inhabits sandy and muddy bottoms in deeper waters along the Pacific coast from California to Alaska. Anglers occasionally catch them while bottom fishing for other species, though they are not typically targeted. They are found at depths ranging from shallow waters to several hundred feet deep. It is a salt water species, filed under offshore in the Fishdex.

Yes. Log one through the Cobia Camera and this entry fills in with your own photo, your personal best, and the conditions on the day you caught it. The app also carries the slot limits and season dates for wherever you are standing. It is free.

Free on iPhone

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iPhone, iOS 17 or later. Setup takes about a minute.