Amphiorchis Price, 1934 (taxonomy source)
Atamatam Bullard & Roberts in Bullard, Roberts, Warren, Dutton, Whelan, Ruiz, Platt, Tkach, Brant & Halanych, 2019 (taxonomy source)
Atamatamidae Bullard & Dutton, 2022 (original description)
Baracktrema Roberts, Platt & Bullard in Roberts, Platt, Orélis-Ribeiro & Bullard, 2016 (taxonomy source)
Baracktrematidae Bullard & Dutton, 2022 accepted as Unicaecidae Mehra, 1934 (original description)
Cardiotrema Dwivedi, 1967 (taxonomy source)
Carettacola Manter & Larson, 1950 (taxonomy source)
Carettacolidae Yamaguti, 1958 (redescription)
Cheloneotrema Simha & Chattopadhyaya, 1980 (taxonomy source)
Coeuritrema Mehra, 1933 (taxonomy source)
Enterohaematotrema Mehra, 1940 (taxonomy source)
Hapalorhynchus Stunkard, 1922 (taxonomy source)
Hapalotrema Looss, 1899 (taxonomy source)
Hapalotrema Price, 1934 accepted as Hapalotrema Looss, 1899 (basis of record)
Hapalotrematidae Stunkard, 1921 (emend. Poche, 1926) (redescription)
Learedius Price, 1934 (taxonomy source)
Neocaballerotrema Simha, 1977 (additional source)
Neospirorchis Price, 1934 (taxonomy source)
Paratamatam Bullard & Roberts in Bullard, Roberts, Warren, Dutton, Whelan, Ruiz, Platt, Tkach, Brant & Halanych, 2019 (taxonomy source)
Pitiutrema Dutton & Bullard in Dutton, Warren & Bullard, 2019 (taxonomy source)
Platt Roberts & Bullard in Roberts, Arias, Halanych, Dang & Bullard, 2018 (taxonomy source)
Plattidae Bullard & Dutton, 2022 (original description)
Ruavermis Dutton & Bullard, 2020 (taxonomy source)
Satyanarayanotrema Simha & Chattopadhyaya, 1980 (taxonomy source)
Shobanatrema Simha & Chattopadhyaya, 1980 (taxonomy source)
Spirorchiidae Stunkard, 1921 (taxonomy source)
Spirorchiidae Stunkard, 1921 (redescription)
Unicaecum Stunkard, 1925 (taxonomy source)
Uterotrema Platt & Pichelin, 1994 (taxonomy source)

 Taxonomy

 for Hapalotrematidae Stunkard, 1921 (emend. Poche, 1926)

Poche (1926, p. 178) corrected the spelling of ‘‘Hapalotreminae Stunkard, 1921’’ (see Stunkard, 1921) as ... [details]

 Taxonomy

 for Uterotrema Platt & Pichelin, 1994

Incertae sedis. Provisionally placed in the Spirorchiidae. [details]