The genus Macdonaldius was established by Khanna (1933) for the type species Macdonaldius seetae Khanna 1933, which was collected from the portal vein of the colubrid snake, Coluber melanoleucus.
Macdonaldius is quite similar in its morphological characteristics between species and exhibits considerable intraspecific variation.
Of the Macdonaldius species which infect snakes (including M.
Nouvelle filaire parasite des arteres de pythons: Macdonaldius oschei n.
Nouvelle filaire parasite des arteres de l'Heloderma suspectum Cope: Macdonaldius andersoni n.
Neubeschreibung einer filarie, Macdonaldius pflugfelderi n.