Reference citation: Rosenthal, R. J. and J. R. Chess. 1972. A predator-prey relationship between the leather star, Dermasterias imbricata, and the purple urchin, Strongylocentrotus purpuratus. Fishery Bulletin (Seattle) 70:205-216.
Reference citation: Rosenthal, R.J., Clarke, W.D. and Dayton, P.K. (1974). Ecology and natural history of a stand of giant kelp, Macrocystis pyrifera, off Del Mar, California. Fish. Bull. (Dublin). 72(3):670-684.
Reference citation: R. J. Rosenthal, W. D. Clarke, P. K. Dayton, Ecology and natural history of a stand of giant kelp, Macrocystis pyrifera, off Del Mar, California. Fish. Bull. (Dublin) 72(3):670-684, from p. 683 (1974).