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Sanguine Frogfish

Antennarius sanguineus

Close-up macro shot of a vibrant red Sanguine Frogfish (Antennarius sanguineus) resting on a sponge in Bahía Solano.

Adult

Family: Frogfishes (Antennariidae)
Size: Up to 10 cm (4 in) | Common: 6 cm
Depth: 1 – 40m (3 – 130ft)

Distribution: Eastern Pacific (Gulf of California to Chile).

Identification: A master of disguise that looks more like a sponge than a fish.

  • Variable Color: They can change color to match their surroundings. Common colors in Bahia Solano include bright orange, blood-red, yellow, or mottled brown.
  • Shape: Globular and lumpy skin texture that mimics sponges or algae. The mouth is large and upturned.
  • The Lure: On top of its head, it has a modified dorsal fin spine (the illicium) tipped with a fleshy "bait" (the esca) used to attract prey.

Behavior: The fisherman of the reef.

  • Walking: They rarely swim. Instead, they use their modified pectoral and pelvic fins like hands to "walk" slowly across the rocks.
  • Ambush: They sit perfectly motionless, wiggling their lure to attract small fish. When prey gets close, they strike with one of the fastest bites in the animal kingdom (milliseconds).

You just learned about this fish...

NOW COME SEE IT!

Fun Dive Cover page in Bahia Solano
Fun Dive Cover page in Bahia Solano
Fun Dive Cover page in Bahia Solano

Behind the Lens

Jalvan

Underwater Photographer & Instructor

Documenting unique marine biodiversity from the Red Sea across the Pacific Ocean. Dedicated to creating a visual catalog of Bahia Solano's marine life for conservation and research.

Photography: Sony A7C II | Olympus EPL10
Video: Osmo Action 5 Pro | GoPro

Follow my work:

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REFERENCES & DATA SOURCES

  • Scientific ID: Verified via FishBase (Froese & Pauly).
  • Field Guide: Reef Fish Identification: Baja to Panama (Humann & DeLoach).
  • Regional Data: Ankla Azul Marine Observation Log (Bahia Solano).

More Than Kicking Your Fins

At Ankla Azul, diving is more than kicking your fins. It's patient teaching, sharp safety, and real care for the place we call home. As an SSI Instructor Training Center and an SSI Blue Oceans Center (2025 award), we blend skill-building with ocean awareness—Fish ID, coral nursery work, community education, and rescue support—so every dive grows confidence and respect for Bahía Solano's wild Pacific.