[1] This species was described from specimens collected under loose coral and sand in 15–20 m of water at Clipperton Island, East Pacific.

[1] The body of Anteaeolidiella ireneae is translucent white, with scattered orange pigment over the back.

There is an irregular white line from the head extending between the rhinophores and spreading into a teardrop shape over the pericardium.

This line continues as several diamond-shaped patches of white or pale yellow pigment along the midline.

They extend from the rear of the rhinophores to the tail and leave a bare zone over the back.