Towards resolving the problematic status of the digenean genus Astiotrema Looss 1900: Taxa excluded from Astiotrema (sensu stricto) with special reference to plagiorchioid genera closely related to the restricted concept of Astiotrema Author Karar, Yasser F. M. Department of Zoology, Faculty of Sciences, New Valley University, Kharga, New Valley, Egypt. & Research Associate, Laboratory of Parasitology, Department of Ecology & Conservation Biology, College of Agriculture & Life Sciences, Texas A & M University, College Station, Texas 77843, U. S. A. Author Blend, Charles K. Corpus Christi Museum of Science & History, 1900 N. Chaparral St., Corpus Christi, Texas 78401, U. S. A. & Laboratory of Parasitology, Biodiversity Research & Teaching Collection, Department of Ecology & Conservation Biology, College of Agriculture & Life Sciences, Texas A & M University, College Station, Texas 77843, U. S. A. Author Dronen, Norman O. Laboratory of Parasitology, Biodiversity Research & Teaching Collection, Department of Ecology & Conservation Biology, College of Agriculture & Life Sciences, Texas A & M University, College Station, Texas 77843, U. S. A. & The Schubot Center for Avian Health, Department of Veterinary Pathobiology, College of Veterinary Medicine & Biomedical Sciences, Texas A & M University, College Station, Texas 77843, U. S. A Author Adel, Asmaa Department of Zoology, Faculty of Sciences, South Valley University, 83523 Qena, Egypt. text Zootaxa 2023 2023-05-12 5284 3 445 495 http://dx.doi.org/10.11646/zootaxa.5284.3.2 journal article 57315 10.11646/zootaxa.5284.3.2 ef345052-79d9-488e-8753-677b445f3d5f 1175-5326 7929507 DA6684D9-508D-47A3-ACD9-D36A201086C3 Genus Orientocreadium Tubangui, 1931 (Syns. Ganada Chatterji, 1933 ; Neoganada Dayal, 1938 ; Nizamia Dayal, 1938 ; Ganadotrema Dayal, 1949 ; Macrotrema Gupta, 1951 ; Paratormopsolus Dubinina & Bychowsky in Skrjabin, 1954; Orientocreadium [ Pseudoorientocreadium ] Agrawal & Sharma, 1990)