Lee, W.L. (2001). Four new species of
Forcepia (Porifera, Demospongiae, Poecilosclerida, Coelosphaeridae) from California and synonymy of
Wilsa de Laubenfels, 1930, with
Forcepia, Carter, 1874.
Proceedings of the California Academy of Sciences. 52(18): 227-244.