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Marine Animal Encyclopedia

Sargassumfish Histrio histrio

This unusual frogfish (family Anternnariidae) lives in floating rafts of sargassum seaweed. It uses its prehensile, leg-like pectoral fins to clasp clumps of weed and scramble around the rafts. With its skin tassels, mottled pattern, and variable color, the sargassumfish is well camouflaged and able to lure small fish and shrimp within striking range. If threatened, it can scramble onto the top of the seaweed raft. These fish are sometimes washed ashore with their rafts.

Sargassumfishzoom image
  • Order Lophiiformes
  • Length Up to 8 in (20 cm)
  • Weight Not recorded
  • Depth About 0–36 ft (0–11 m)
  • Distribution Tropical and subtropical seas worldwide; not recorded in eastern Pacific
Sargassumfish habitat mapzoom image