Gulf of Mexico, southeastern United States and the Bahamas
Forrester, D. J., and M. G. Spalding. 2003. Parasites and Disease of Wild Birds in Florida. University Press of Florida, Gainesville, Florida. 1133 pp.
Kinsella, J. M., and D. J. Forrester. 1999. Parasitic helminths of the common loon, Gavia immer, on its wintering grounds in Florida. Journal of the Helminthological Society of Washington 66: 1–6.
Added keyword "parasitic"
Overstreet, R. M., J. O. Cook, and R. W. Heard. 2009. Trematoda (Platyhelminthes) of the Gulf of Mexico, Pp. 419–486 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
Harte Research Institute for Gulf of Mexico Studies. 2016. GulfBase: Resource Database for Gulf of Mexico Research, Education, and Management. Texas A&M University-Corpus Christi. World Wide Web electronic publication. http://www.gulfbase.org, 10-23-2021.