Other common names: Pot-bellied seahorse
Range: Australia & New Zealand
Size: up to 35 cm (13.8 in)
Red List status: Least Concern
Range: West Africa
Size: up to 19 cm (7.5 in)
Red List status: Vulnerable
Other common names: western Australian seahorse, western spiny seahorse
Range: Northern Australia
Size: up to 16 cm (6.3 in)
Red List status: Least Concern
Range: Indo-Pacific
Size: up to 15 cm (5.9 in)
Red List status: Vulnerable
Range: Indo-Pacific
Size: Up to 2.4 – 2.7 cm (0.9 – 1.1 in)
Red List status: Data Deficient
Other common names: knobby seahorse, short-headed seahorse, short-snouted seahorse
Range: Southern Australia
Size: up to 10 cm (3.9 in)
Red List status: Least Concern
Range: Western Indian Ocean
Size: up to 10 cm (3.9 in)
Red List status: Data Deficient
Other common name: Cape seahorse
Range: Southern Africa
Size: up to 12 cm (4.7 in)
Red List status: Endangered
Range: China
Size: up to 13.3 cm (5.2 in)
Red List status: Data Deficient
Range: Indo-Pacific
Size: up to 2.6 cm (1 in)
Red List status: Data Deficient
Range: Southeast Asia
Size: up to 18.7 cm (7.4 in)
Red List status: Vulnerable
Other common name: high-crowned seahorse
Range: Japan & South Korea
Size: up to 12.7 cm (8.7 in)
Red List status: Data Deficient
Range: Northern & Eastern Australia
Size: up to 22 cm (8.7 in)
Red List status: Least Concern
Range: Red Sea
Size: up to 2.4 cm (0.9 in)
Red List status: Data Deficient
Range: Indo-Pacific
Size: up to 2.1 – 2.4 cm (0.8 – 0.9 in)
Red List status: Data Deficient
Other common names: northern seahorse, spotted seahorse
Range: Western Atlantic
Size: up to 19 cm (7.5 in)
Red List status: Vulnerable
Other common name: Hawaiian seahorse
Range: Pacific (Hawaii)
Size: up to 8 cm (3.1 in)
Red List status: Least Concern
Other common name: spiny seahorse
Range: Europe & Mediterranean
Size: up to 18 cm (7.1 in)
Red List status: Data Deficient
Range: Korea & Japan
Size: up to 11.4 cm (4.5 in)
Red List status: Not Evaluated
Range: Mediterranean, W. Atlantic
Size: up to 15 cm (5.9 in)
Red List status: Data Deficient
Other common name: spiny seahorse
Range: W. Indian Ocean to Central Pacific
Size: up to 17 cm (6.7 in)
Red List status: Vulnerable
Other common name: giant seahorse
Range: California to Peru (Pacific Ocean)
Size: up to 31 cm (12.2 in)
Red List status: Vulnerable
Other common name: Japanese pygmy seahorse
Range: Japan
Size: up to 1.6 cm (0.6 in)
Red List status: Not Evaluated
Range: Red Sea to Pakistan
Size: up to 14 cm (5.5 in)
Red List status: Least Concern
Range: Australia
Size: up to 4.4 cm (1.7 in)
Red List status: Data Deficient
Other common name: Kellogg’s seahorse
Range: Indo-Pacific to E. Africa to China & Australia
Size: up to 28 cm (11 in)
Red List status:Vulnerable
Other common names: common seahorse, estuary seahorse, yellow seahorse, spotted seahorse
Range: Indo-Pacific to E. Africa to China & Australia
Size: up to 17 cm (6.7 in)
Red List status:Vulnerable
Range: S. Australia
Size: up to 5 cm (2 in)
Red List status: Data Deficient
Other common name:lemur-tail seahorse
Range: Japan & Korea to Thailand
Size: up to 8 cm (3.2 in)
Red List status:Vulnerable
Range: South Africa
Size: up to 2.2 cm (0.9 in)
Red List status: Not Evaluated
Range: Indo-Pacific to E. Africa to China & Australia
Size: up to 6.5 cm (2.6 in)
Red List status: Data deficient
Range: Brazil to Argentina
Size: up to 10.3 cm (4.1 in)
Red List status: Vulnerable
Range: Australia
Size: up to 22 cm (8.7 in)
Red List status: Least Concern
Other common name: Pontoh’s pygmy seahorse
Range: Indo-Pacific
Size: up to 1.7 cm (0.7 in)
Red List status: Least Concern
Other common name: dwarf thorny seahorse
Range: New Caledonia
Red List status: Data Deficient
Other common name: longsnout seahorse
Range: North Carolina (USA) to Brazil
Size: up to 17.5 cm (6.9 in)
Red List status: Near Threatened
Other common name: Satomi’s pygmy seahorse
Range: Indo-Pacific
Size: up to 1.4 cm (0.6 in)
Red List status: Data Deficient
Other common names: Shiho’s seahorse, painted seahorse
Range: Japan
Size: up to 8 cm (3.2 in)
Red List status: Least Concern
Other common name: Queensland seahorse
Range: Indo-Pacific
Size: up to 17.2 cm (6.8 in)
Red List status:Vulnerable
Range: W. Australia
Size: up to 20 cm (7.9 in)
Red List status: Data Deficient
Other common names: flat-faced seahorse, longnose seahorse, low-crowned seahorse
Range: Indo-Pacific
Size: up to 17 cm (6.7 in)
Red List status:Vulnerable
Range: Seychelles
Size: up to 6.1 cm (2.4 in)
Red List status: Data Deficient
Other common name: Walea pygmy seahorse
Range: Indonesia
Size: up to 1.8 cm (0.7 in)
Red List status: Not Evaluated
Other common names: New Holland seahorse, Sydney seahorse
Range: Solomon Islands, E. Australia
Size: up to 13 cm (5.1 in)
Red List status: Endangered
Range: Australia
Red List status: Data Deficient
Size: up to 9.4 cm (3.7 in)
Range: Gulf of Mexico
Size: up to 2.5 cm (1 in)
Red List status: Least Concern
