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Merkin Crab fly pattern
Light brown yarn · weighted eyes · View the pattern reference ↗

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Crustacean / Pattern notes

Merkin Crab

A flat yarn crab with splayed feather claws and mobile rubber legs.

Del Brown’s crab pattern is closely associated with permit fishing.

At the vise
Intermediate
Common sizes
#4–1/0
From hook to fly

At the vise.

4 illustrated steps

Work through the numbered steps in order. Use the written materials and proportions as your guide; select an image for a closer look.

  1. Merkin Crab, step 1: Anchor the eyes

    Anchor the eyes

    Figure-eight dumbbell eyes behind the hook eye. Cement the wraps and extend thread to the bend.

  2. Merkin Crab, step 2: Splay the claws

    Splay the claws

    Attach two matched feather pairs, angled apart. Add sparse pearl flash between them.

  3. Merkin Crab, step 3: Build a flat body

    Build a flat body

    Rotate hook point upward. Secure short yarn bundles crosswise toward the eyes, trapping four rubber strands beneath successive bundles.

  4. Merkin Crab, step 4: Shape and finish

    Shape and finish

    Whip finish at the front. Protect the legs while trimming yarn into a flat oval; trim legs evenly and mark tips red.

Beyond the bench

On the water.

Let the weighted fly settle near feeding fish; choose weight for the bottom and depth.

Tied by independent makers

Find your Merkin Crab.

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Have this pattern tied for your water.

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Recipe references

Original written instructions adapted from the sources below. Materials and methods may vary between versions.

Portrait reference

Pattern dressings vary; use the written recipe for exact materials and proportions.

Trident — Del Brown Merkin Crab

For the same fly box.

Avalon Shrimp fly patternAvalon ShrimpShrimp · #2Borski’s Slider fly patternBorski’s SliderSaltwater streamer · #2Clouser Minnow fly patternClouser MinnowStreamer · #8–2/0