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Species · Lookalikes

High-HatorJackknife-Fish

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

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High-HatPareques acuminatus
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Jackknife-FishEquetus lanceolatus

Rules for both fish from 2 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

High-Hat

Small black-and-white striped drum with a very tall first dorsal fin on juveniles; hovers under ledges.

High-hat, next to jackknife-fish: horizontal stripes.

Jackknife-Fish

Black-and-white drum with a sail-like first dorsal fin and a curved black bar running from the dorsal into the tail.

Jackknife-fish, next to high-hat: longer dorsal sail, three curved bars.

Side by side

High-HatJackknife-Fish
Scientific namePareques acuminatusEquetus lanceolatus
Also calledHigh-hatJackknife-fish
WatersNearshoreNearshore
Heaviest state record
On the tableNot a food fish.Not a food fish.
Rules of its own in2 states2 states

Rules for

Every state, both fish

Where either fish has a rule, the two are regulated the same. The name still goes in the log and on the tally.

StateHigh-Hat: size · bag · seasonJackknife-Fish: size · bag · season
Florida (Atlantic)No size limit5 per species within 20-organism marine life aggregateYear-roundOpenFWC 2026 · likely · checked No size limit5 per species within 20-organism marine life aggregateYear-roundOpenFWC 2026 · likely · checked
Florida (Gulf)No size limit5 per species within 20-organism marine life aggregateYear-roundOpenFWC 2026 · likely · checked No size limit5 per species within 20-organism marine life aggregateYear-roundOpenFWC 2026 · likely · checked

In the app

Point the camera at the fish and Chum names it before you take the picture, high-hat or jackknife-fish, 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 high-hat from jackknife-fish?

High-Hat: Small black-and-white striped drum with a very tall first dorsal fin on juveniles; hovers under ledges. Jackknife-Fish: Black-and-white drum with a sail-like first dorsal fin and a curved black bar running from the dorsal into the tail. Jackknife-fish, next to high-hat: longer dorsal sail, three curved bars. High-hat, next to jackknife-fish: horizontal stripes.

Which is better to eat, high-hat or jackknife-fish?

High-Hat: Not a food fish. Jackknife-Fish: Not a food fish.

Do high-hat and jackknife-fish have the same limits?

Yes, in every state that regulates either one. The table on this page lists each rule with its source and check date.