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The darters, anhingas, or snakebirds are mainly tropical waterbirds in the family Anhingidae, which contains a single genus, Anhinga. 

Suliformes maybe from Old Norse Sula +‎ -iformes for boobies, gannets.
Anhinga is derived from the Tupi ajíŋa (also transcribed áyinga or ayingá), which in local mythology refers to a malevolent demonic forest spirit; it is often translated as "devil bird". The name changed to anhingá or anhangá as it was transferred to the Tupi–Portuguese Língua Geral.

1/ Oriental darter (Cổ rắn, Điêng điểng, Anhinga melanogaster)

Anhingas, aussi appelés oiseaux-serpent, est le seul genre d'oiseaux de la famille Anhingidae.

Suliformes: vieux norrois ou vieux norvégien: Sula +‎ -iformes pour des foux.
Le mot « Anhinga » vient de la langue Tupi du Brésil et veut dire « oiseau-diable » ou « oiseau-serpent ».

1/ Anhinga Roux
Oriental darter (Cổ rắn, Điêng điểng, Anhinga melanogaster)

Anhinga Roux
Oriental darter 
(Cổ rắn, Điêng điểng, Anhinga melanogaster)

L‘Anhinga roux (Anhinga melanogaster ), parfois appelé Oiseau-serpent, est une espèce d'oiseau aquatique de l'Asie du Sud et du Sud-Est, répandu du Népal jusqu'à l'île de Timor.

Suliformes: vieux norrois ou vieux norvégien: Sula +‎ -iformes pour des foux.
Le mot « Anhinga » vient de la langue Tupi du Brésil et veut dire « oiseau-diable » ou « oiseau-serpent ».
melanogaster, melanogastra, melanogastrus vient du mot grec melas: noir; gaster: ventre.

Oriental darter 
(Cổ rắn, Điêng điểng, Anhinga melanogaster)

The Oriental darter (Anhinga melanogaster) is a water bird of tropical South Asia and Southeast Asia.

Suliformes maybe from Old Norse Sula +‎ -iformes for boobies, gannets.
Anhinga is derived from the Tupi ajíŋa (also transcribed áyinga or ayingá), which in local mythology refers to a malevolent demonic forest spirit; it is often translated as "devil bird". The name changed to anhingá or anhangá as it was transferred to the Tupi–Portuguese Língua Geral.
melanogaster, melanogastra, melanogastrus Greek melas black; gaster belly.