Mills, C. and Rees, J.T. 2000. New observations and corrections concerning the trio of invasive hydromedusae Maeotias marginata (=M. inexpectata), Blackfordia virginica, and Moreisia sp. in the San Francisco Estuary. Scientia Marina. 64, S1 (Dec. 2000), 151–155. DOI:https://doi.org/10.3989/scimar.2000.64s1151.