P. lipotriaena was erected by de Laubenfels based on the absence of triaenes. Re-examination of the type specimen (USNM 23049) revealed the presence of triaenes and the same characters as P. bacca, therefore it was synonymized with P. bacca.
Santodomingo, N.; Becking, L.E. (2018). Unravelling the moons: review of the genera <i>Paratetilla</i> and <i>Cinachyrella</i> in the Indo-Pacific (Demospongiae, Tetractinellida, Tetillidae). <em>Zookeys.</em> 791: 1-46. Available for editors [request]