Primary references

• Stossich, M. 1902. Monostomum mutabile Zeder e le sue forme affini. Bollettino della Societ’a Adriatica di Scienz Naturali in Trieste 21: 1–40.

Additional references

• Dronen, N.O. 2007. Revision of the family Cyclocoelidae Stossich, 1902 with the proposal of two new subfamilies and the description of a new species of Morishitium Witenberg, 1928 from the common snipe, Gallinago gallinago, from Texas, U.S.A. Zootaxa 1563: 55–68. Abstract & excerpt.
• Dronen, N.O., Greiner, E.C., Ialeggio, D.M. & Nolan, T.J. 2009. Circumvitellatrema momota n. gen., n. sp. (Digenea: Cyclocoelidae: Cyclocoelinae) from a captive-hatched blue-crowned motmot, Momotus momota (Momotidae). Zootaxa 2161: 60–68. Abstract & excerpt.

• Dronen, N.O. & Blend, C.K. 2015. Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007. Zootaxa 4053(1): 1–100. DOI: 10.11646/zootaxa.4053.1.1 . Preview (PDF) Reference page. 

• Dronen, N.O., Al-Kassar, N.R., Ali, A.H., Abdulhameed, M.F., Abdullah, B.H. & Al-Mayah, S.H. 2017. Intraspecific variation in adult Uvitellina iraquensis Dronen, Ali & Al-Amura, 2013 (Cyclocoelidae: Haematotrephinae) from two collection sites of white-tailed lapwing, Vanellus leucurus (Lichtenstein) (Charadriiformes: Charadriidae), in Iraq. Zootaxa 4242(1): 1–33. DOI: 10.11646/zootaxa.4242.1.1 . Full article (PDF) Reference page. 

Links

• Cyclocoelidae in the World Register of Marine Species
• http://www.catalogueoflife.org/col/browse/tree/id/3bfa55fd1f3c5d7f60faf61d9d2c7d3c
• Zicha, Ondřej et al. Cyclocoelidae Biological Library