Seaponies and mermares

Seaponies and mermares are similar to each other, to sirens, and to kelpies. Named seaponies include Coral, Arrow, and according to some but not all statements Marina; named mermares include Jewel and Electra.

Development and production
G1 Sea Ponies, G1 Fancy Mermaid Ponies; G3.5 Mermaid Ponies.

Depiction
My Little Pony: Under the Sparkling Sea.

Jetpack Comics cover RE & Larry's Comics and Jetpack Comics cover RE.

The Fall of Sunset Shimmer page 6.

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story.

My Little Pony: Rarity and the Curious Case of Charity.

My Little Pony: The Castles of Equestria.

Phoenix Comics & Games cover RE.

My Little Pony Friendship Adventure.