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Species · Lookalikes

American PlaiceorSummer Flounder

Two fish anglers mix up. Here is what separates them, and what each one’s rules are in your state.

Studio photograph of an American Plaice (Hippoglossoides platessoides), seen from above, on a white background
American PlaiceHippoglossoides platessoides
Studio photograph of a Summer Flounder (Paralichthys dentatus), seen from above, on a white background
Summer FlounderParalichthys dentatus

Rules for both fish from 16 state rulebooks, checked Sep 18, 2026. Every rule names its source and the day it was last checked; the official rulebook is the final word.

How to tell them apart

American Plaice

Right-eyed flounder with a large mouth reaching below the eye and a nearly straight lateral line; rough reddish-brown to gray-brown back.

Summer Flounder

Left-facing flatfish with 5 or more dark eye-like spots, several near the tail.

Summer flounder, next to American plaice: left-eyed, big-toothed.

Side by side

American PlaiceSummer Flounder
Scientific nameHippoglossoides platessoidesParalichthys dentatus
Also calledDab, Canadian plaice, Sand dabFluke
WatersOffshoreInshore
Heaviest state record22 lb 7 oz · New York (1975)
On the tableGood — mild, thin fillets; the New England market 'dab'.Excellent — mild, white, hard to beat.
Rules of its own in3 states16 states

Rules for

Every state, both fish

The two fish are regulated differently in 16 of 16 states with a rule for either. In Massachusetts, American plaice is 14" min, No bag limit and summer flounder is 17.5" vessel / 16.5" shore, 5 fish. Call the fish wrong and you keep a short one or throw back a legal one.

StateAmerican Plaice: size · bag · seasonSummer Flounder: size · bag · season
AlabamaNot specifically regulated; the state’s default for unlisted species applies.14 in total length minimum5 per personOpen year-round except Nov 1-30 (take or possession prohibited in November)OpenAL MRD 2026 · likely · checked
ConnecticutNot specifically regulated; the state’s default for unlisted species applies.19" (May 4-Aug 1), 19.5" (Aug 2-Oct 15); 17" at Enhanced Opportunity Shore Fishing Sites3 per anglerMay 4 - Oct 15OpenCT DEEP 2026 · checked
DelawareNot specifically regulated; the state’s default for unlisted species applies.17.5 in min (16 in Jan 1-May 31)4 per dayOpen year-roundOpenDE DNREC 2026 · checked
Florida (Atlantic)Not specifically regulated; the state’s default for unlisted species applies.14 in TL min5 per person (all flounder species combined)Closed Oct 15-Nov 30OpenFWC 2026 · checked
Florida (Gulf)Not specifically regulated; the state’s default for unlisted species applies.14 in TL min5 per person (all flounder species combined)Closed Oct 15-Nov 30OpenFWC 2026 · checked
GeorgiaNot specifically regulated; the state’s default for unlisted species applies.12 in total length15 per person per dayOpen year-roundOpenGA DNR CRD 2026 · checked
MaineNot specifically regulated; the state’s default for unlisted species applies.20" min2 per dayOpen year-roundOpenME DMR 2026 · checked
MarylandNot specifically regulated; the state’s default for unlisted species applies.16 in TL Jan 1-May 31; 17.5 in TL Jun 1-Dec 314Open year-roundOpenMD DNR 2026 · checked
Massachusetts14" minNo bag limitYear-roundOpenMA DMF 2026 · checked 17.5" vessel / 16.5" shore5 fishMay 24 - Sep 23OpenMA DMF 2026 · checked
New Hampshire14" TL minNo bag limitYear-roundOpenNH F&G 2026 · checked 15 in TL minNo bag limitOpen year-roundOpenNH F&G 2026 · checked
New JerseyNot specifically regulated; the state’s default for unlisted species applies.18 in min3May 4 - Sep 25OpenNJ DEP 2026 · checked
New YorkNot specifically regulated; the state’s default for unlisted species applies.19" (May 4-Aug 1), 19.5" (Aug 2-Oct 15)3May 4 - Oct 15OpenNY DEC 2026 · checked
North CarolinaNot specifically regulated; the state’s default for unlisted species applies.15 in TL min1/daySep 1 - Sep 14, 2026ClosedNC DMF 2026 · checked
Rhode Island12" minNo bag limitYear-roundOpenRI DEM 2026 · likely · checked 19" min6/person/dayApr 1 - Dec 31OpenRI DEM 2026 · checked
South CarolinaNot specifically regulated; the state’s default for unlisted species applies.16 in total length5/day, max 10/boatOpen year-roundOpenSC DNR 2026 · checked
VirginiaNot specifically regulated; the state’s default for unlisted species applies.17.5 in min (16 in Jan 1 - May 31)4 per personOpen year-roundOpenVMRC 2026 · checked

In the app

Point the camera at the fish and Chum names it before you take the picture, American plaice or summer flounder, with the right rules for the water you’re standing in. No signal needed.

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Questions anglers ask

How do you tell American plaice from summer flounder?

American Plaice: Right-eyed flounder with a large mouth reaching below the eye and a nearly straight lateral line; rough reddish-brown to gray-brown back. Summer Flounder: Left-facing flatfish with 5 or more dark eye-like spots, several near the tail. Summer flounder, next to American plaice: left-eyed, big-toothed.

Which is better to eat, American plaice or summer flounder?

American Plaice: Good — mild, thin fillets; the New England market 'dab'. Summer Flounder: Excellent — mild, white, hard to beat.

Do American plaice and summer flounder have the same limits?

Not everywhere. They differ in 16 state rulebooks. Massachusetts: American plaice 14" min, No bag limit, summer flounder 17.5" vessel / 16.5" shore, 5 fish; New Hampshire: American plaice 14" TL min, No bag limit, summer flounder 15 in TL min, No bag limit; Rhode Island: American plaice 12" min, No bag limit, summer flounder 19" min, 6/person/day; Alabama: American plaice no rule of its own, summer flounder 14 in total length minimum, 5 per person; Connecticut: American plaice no rule of its own, summer flounder 19" (May 4-Aug 1), 19.5" (Aug 2-Oct 15); 17" at Enhanced Opportunity Shore Fishing Sites, 3 per angler; and more in the table on this page.