Barnard, J.L. and W.S. Gray, 1968. Introduction of an amphipod crustacean into the Salton Sea, California. Bulletin of the Southern California Academy of Sciences. No amphipods were seen in 1955, but were observed in 1962. Gammarus mucronatus was probably introduced in 1957 along with marine grass Diplanthera from Texas.
Paper includes illustrations of male and female appendages.
Barnard, J.L. and W. S. Gray, 1969. Biogeographic relationships of the Salton Sea amphipod, Gammarus mucronatus Say. Discusses the relationship between fresh, brackish, marine and inland saline species of gammarids, and concludes that Gammarus mucronatus has a stronger relationship to Europoean fluviogammaruses. The ecology of the Salton Sea, California, in relation to the sportfishery, B.W. Walker, ed. California Fish and Game, Fish Bulletin No. 113.