Species: Sphyrna tudes, Golden Hammerhead, Golden Hammerhead Shark, Smalleye Hammerhead
small eyes

Sphyrna tudes (Valenciennes, 1822)
Golden Hammerhead, Smalleye Hammerhead, Golden Hammerhead Shark
Head broad, mallet shaped, its front broadly arched, a deep depression at center, smaller rounded depressions opposite each eye; lateral expansion of head prominent, side to side and front to back; eyes small (diameter much less than length of gill slits), rear margin of eye well in front of mouth; nostrils with long prenasal grooves across front of head; mouth large, broadly arched; front teeth blade-like, smooth, rear teeth like front teeth; lower teeth straight, upper teeth oblique, deeply notched on rear side; five gill slits, last one over pectoral; first dorsal fin high, erect, origin over inner pectoral margin, rear free tip slender, ends over or behind pelvic origin; second dorsal height ¼ of first, free rear tip ends well before tail base pit; anal fin base about twice that of second dorsal base, rear margin shallowly concave; pectoral fins short, broad; rear margin of pelvic fin straight.
Bright yellow to orange, with metallic hues.
Size: 148 cm.
Habitat: Inshore, in estuaries.
Depth: 9-50 m.
Colombia to Uruguay.

High Resolution Map Download
- Salinity
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- Marine
- Marine Only
- Inshore/Offshore
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- Inshore
- Inshore Only
- Water Column Position
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- Bottom
- Bottom + water column
- Near Bottom
- Habitat
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- Sand & gravel
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Water column
- Beach
- Mud
- FishBase Habitat
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- Bentho-Pelagic
- Feeding Group
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- Carnivore
- Data
- Diet
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- Data
- Bony fishes
- Mobile benthic crustacea (shrimps/crabs)
- Octopus/squid/cuttlefish
- Egg Type
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- Data
- Live birth
- No pelagic larva
- Global Endemism
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- All species
- Greater Caribbean non-endemic
- West Atlantic Endemic
- Regional Endemism
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- Also in Brazil
- Continent
- Continent only
- Extends South of GC
- GC non-endemic
- All species
- Residency
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- Resident
- Climate Zone
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- Equatorial (0-10N, Costa Rica / Venezuela)
- IUCN Red List
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- Listed
- Vulnerable
- CITES
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- Not listed
- Length Max
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- 148
- Depth Range Min
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- 9
- Depth Range Max
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- 50