Tritoniopsis cincta is a species of dendronotid nudibranch.

[2] This species was described from Banyuls-sur-Mer, France in the Mediterranean Sea.

It has also been reported from the Bay of Biscay at Donostia on the Atlantic Coast of Spain.

[3] Tritoniopsis cincta has a translucent white body with a yellow line at the mantle edge.

The tips of the rhinophores and larger processes on the oral veil are opaque white.