Spiny Dogfish: Squalus acanthias


  • Blueish-gray back, white spots on sides and a white belly
  • Slender body with a long, narrow and pointed snout
  • One spine in front of each of the two dorsal fins
  • First dorsal fin starts just behind pectoral fin
  • Spiracles present No anal fin present
  • Pale caudal fin with white edge and black blotch on upper lobe
  • No interdorsal ridge

Similar Species: Smooth dogfish, M. canis (has anal fin and lacks dorsal spines)

Size: Up to 5 feet


Coastal waters on the east coast, usually near the bottom; tolerate brackish water


 Forage in large schools; feed on fishes and invertebrates

Additional Information

Recreational Regulations

Image Credit: © Diane Rome Peebles

FWC Facts:
Adult Florida bass usually eat crayfish and other fish, but on rare occasions eat snakes and birds.

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