2000, Virginia Vitzthum, "Annie Sprinkle swims forward", Salon, 8 February 2000:In the “how to make a porn video†within the video, Sprinkle plays an older mermaid who sexually initiates a “merteen†played by Sirena.
2005, Rachel Roberts, The Heart of Avalon, CDS Books (2005), ISBN 9781593150136, page 120:Realization filled the merteen's eyes with sadness.
2012, Maria Denardo, "Rockefeller's Center", The Daily Dan, 27 July 2012:I paddle board, boogie board, and I use a monofin when I swim. You put your two feet in a fin and workout in the water. It’s a great way for merfolk—mermen, merteens, whoever—to connect with the water.