Basionym Name:Microsporidium obtusum Moniez, C. r. hebd. Séanc. Acad. Sci., Paris 104: 185 (1887)
Homotypic synonyms:Conglomerata obtusa (Moniez) Vávra, I. Fiala, P. Krylová, Petrusek & Hyliš, J. Invert. Path. 159: 102 (2018)Larssonia obtusa (Moniez) S.S. Vidtmann & Y.Y. Sokolova, Parasitologija 28: 202-314 (1994)Pleistophora obtusa (Moniez) Labbé, Das Tierreich 5: 109 (1899)