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Main identification features
A large stocky shark; snout short and broad, somewhat rounded; narrow, dagger-like, smooth-pointed teeth in both jaws; 5 gill slits, last 2 over pectoral; spiracles usually absent (occasionally with very small spiracles); no ridge on back between dorsal fins; origin of first dorsal fin behind rear margin of pectoral fins; second dorsal fin about same size or only slightly smaller than first dorsal fin; pectoral fins broad and slightly curved.
Pale yellow brown on back and sides, yellowish or whitish below.
Attains about 340 cm; size at birth 60-65 cm.
A common inshore shark seen in a variety of habitats including rocky reefs, estuaries, and river mouths (may enter fresh water).
Depth: 0-90 m.
Tropical waters of the Atlantic and eastern Pacific (Baja and the Gulf of California to Peru, Malpelo).
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 90 m.
Depth Range Min: 0 m.
Diet: octopus/squid/cuttlefish; mobile benthic gastropods/bivalves; mobile benthic crustacea (shrimps/crabs); bony fishes; sea snakes/mammals/turtles/birds.
Eastern Pacific Range: Northern limit=32; Southern limit=-9; Western limit=-115; Eastern limit=-78; Latitudinal range=41; Longitudinal range=37.
Egg Type: Live birth; No pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Reef Associated.
Global Endemism: East Pacific + Atlantic (East +/or West); East Pacific + all Atlantic (East+West); TEP non-endemic; All species.
Habitat: Estuary; Mud; Reef associated (reef + edges-water column & soft bottom); Rocks; Sand & gravel; Water column; Reef (rock &/or coral); Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Reef and soft bottom.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Near threatened; Listed.
Length Max: 340 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); Eastern Pacific non-endemic; Tropical Eastern Pacific (TEP) non-endemic; All species.
Residency: Resident.
Salinity: Brackish; Marine.
Water Column Position: Bottom; Mid Water; Near Bottom; Bottom + water column;
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