Smooth Dogfish

Identification and comparisons

Two relatively large dorsal fins without spines, a slender body and oval eyes distinguish this shark from the familiar spiny dogfish. An anal fin is present. Look for a small spiracle behind each eye and a rounded lower tail lobe. Florida smoothhounds can look similar, but have a more pointed lower tail lobe and sharper dorsal-fin tips. Identification from a blurry gray silhouette remains uncertain. Florida Museum identification guide.

Atlantic Florida context

NOAA’s deepwater-shark review explicitly maps the species along the Atlantic coast around Florida and through the Straits, rather than simply listing the state without a coast. It includes inshore and deeper shelf habitats. This supports regional coverage of the Atlantic corridor, but does not establish a current sighting on a named Stuart Scuba dive. Northern seasonal migration patterns should not be repackaged as a Palm Beach encounter calendar. NOAA distribution review, Map 40.

Feeding, breeding and size

Flat, blunt teeth suit a diet rich in crustaceans, including crabs and shrimp. Other small animals are also eaten. Females give birth to live pups, with developing young nourished through a placental connection after their initial yolk supply. The museum reports adults reaching approximately 1.5 meters total length, measured to the tail tip. Published maturity estimates differ, so a single age at maturity is not presented as universal. Florida Museum biology.

Three things worth noticing

• Dogfish is a common name, not a guarantee of dorsal spines.
• Its crushing teeth differ from the slicing teeth associated with many large sharks.
• The lower tail lobe helps distinguish two otherwise similar smoothhounds.

Observation and harvest caution

Florida lists smooth dogfish among harvestable sharks without a species minimum size, but shark bag limits, gear requirements and other restrictions still apply. Federal smoothhound rules differ. Review current Florida shark regulations and NOAA recreational shark requirements before fishing; “no minimum” does not mean unrestricted collection.

For divers, avoid following the animal into sediment or disturbing its feeding area. Photograph the whole body from a respectful distance and record location and depth afterward. A cautious identification is more valuable than handling a shark to examine teeth or fins. This profile provides identification context, not a recommendation to catch, eat or keep one.

Current recreational retention rules

Checked November 12, 2026: Florida lists smooth dogfish among sharks with no minimum size, but its general recreational shark limits of one per person daily and two per vessel still apply. NOAA’s Atlantic smoothhound recreational table lists no minimum size and no bag limit. That federal table does not override Florida possession, landing, gear or area restrictions. Verify the species and exact jurisdiction before fishing; smooth dogfish and spiny dogfish are not interchangeable. Official FWC shark rules Official NOAA retention guidance Official Florida legal definitions Federal rule text

Make your next dive happen

Review current dates, availability, prices, inclusions and requirements on each listing before booking or buying.