Archimacrostomum Ferguson, 1954 accepted as
Macrostomum Schmidt, 1848 (original description)
Archimacrostomum beaufortense (Ferguson, 1937) Ferguson, 1954 accepted as
Macrostomum beaufortensis Ferguson, 1937 accepted as
Macrostomum beaufortense Ferguson, 1937 (source of synonymy)
Archimacrostomum brasiliense (Marcus, 1952) Ferguson, 1954 accepted as
Macrostomum brasiliense Marcus, 1952 (source of synonymy)
Archimacrostomum hustedi (Jones, 1944) Ferguson, 1954 accepted as
Macrostomum hustedi Jones, 1944 (source of synonymy)
Axia Ferguson, 1954 accepted as
Macrostomum Schmidt, 1848 (original description)
Inframacrostomum Ferguson, 1954 accepted as
Macrostomum Schmidt, 1848 (original description)
Karlingia Ferguson, 1954 (original description)
Karlingia lutheri (Marcus, 1948) Ferguson, 1954 (new combination reference)
Macrostomum appendiculatum sensitivum (Silliman, 1884) accepted as
Macrostomum appendiculatum Fabricius, 1826 (status source)
Macrostomum appendiculatum sensitivum (Silliman, 1884) accepted as
Macrostomum appendiculatum Fabricius, 1826 (source of synonymy)
Macrostomum appendiculatum sillimani Ferguson, 1939 accepted as
Macrostomum appendiculatum Fabricius, 1826 (source of synonymy)
Macrostomum appendiculatum stirewalti Jones & Ferguson, 1941 accepted as
Macrostomum appendiculatum Fabricius, 1826 (source of synonymy)
Macrostomum beauchampi Ferguson, 1939 accepted as
Macrostomum elgonense (de Beauchamp, 1935) (status source)
Macrostomum brasiliense Marcus, 1952 (taxonomy source)
Macrostomum distinguenda Ferguson, 1954 accepted as
Macrostomum distinguendum Papi, 1951 (original description)
Macrostomum ruebushi kepneri Ferguson & Jones, 1940 accepted as
Macrostomum kepneri (Ferguson & Jones, 1940) (source of synonymy)
Promacrostomum paradoxicum Ferguson, 1954 accepted as
Promacrostomum paradoxum An der Lan, 1939 accepted as
Macrostomum paradoxum (An der Lan, 1939) (original description)
Taxonomic remark
Ferguson, 1954 misspelled the name as M. norfolkense. [details]
Validity
Ferguson, probably unintentionally, consistently misspells Promacrostomum paradoxum An-der-Lan 1939 as ... [details]