Gulf of Mexico, southeastern United States and the Bahamas
Dronen, N. O., and H. W. Chen. 2002. Endohelminths from the little blue heron Egretta caerulea from the Texas Gulf Coast. Comparative Parasitology 69: 96–99.
Font, W. F., R. W. Heard, and R. M. Overstreet. 1984a. Life cycle of Ascocotyle gemina n. sp., a sibling species of A. sexidigita (Digenea: Heterophyidae). Transactions of the American Microscopical Society 103: 392–407.
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., M. G. Spalding, and D. J. Forrester. 2004. Parasitic helminths of the American white pelican, Pelecanus erythrorhynchos, from Florida, U.S.A. Comparative Parasitology 71: 29–36.
Scholz, T., M. L. Aguirre-Macedo, and G. Salgado-Maldonado. 2001. Trematodes of the family Heterophyidae (Digenea) in Mexico: a review of species and new host and geographical records. Journal of Natural History 35: 1733–1772.
Sepulveda, M. S., M. G. Spalding, J. M. Kinsella, and D. J. Forrester. 1996. Parasitic helminths of the little blue heron, Egretta caerulea, in southern Florida. Journal of the Helminthological Society of Washington 63: 136–140.
Sepulveda, M. S., M. G. Spalding, J. M. Kinsella, and D. J. Forrester. 1999. Parasites of the great egret (Ardea alba) in Florida and a review of the helminths reported for the species. Journal of the Helminthological Society of Washington 66: 7–13.
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, 05-29-2020.