Gulf of Mexico, southeastern United States and the Bahamas, northeastern United States and Atlantic Canada
Bush, A. O. 1990. Helminth communities in avian hosts: determinants of pattern. Pp. 197–232 in G. W. Esch, A. O. Bush, J. M. Aho, eds. Parasite Communities: Patterns and Processes. Chapman and Hall, New York.
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, 09-16-2021.