Lumsden, R., and C. A. Winkler. 1962. The opossum, Didelphis virginiana (Kerr), a host for the cyathocotylid trematode Linstowiella szidati (Anderson, 1944) in Louisiana. Journal of Parasitology 48: 503.
Shoop, W. L., and K. C. Corkum. 1982. Additional trematodes of mammals in Louisiana with a compilation of all trematodes reported from wild and domestic mammals in the state. Tulane Studies in Zoology and Botany 23: 109–122.
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, [Today's Date].