Subuluridae is a family of spirurian nematodes which, together with the two species of Maupasinidae, make up the superfamily Subuluroidea. Like all nematodes, they have neither a circulatory nor a respiratory system. They number about one dozen genera and somewhat over 100 species, and are parasites of amniotes, chiefly birds and mammals.

Systematics

Several subfamilies are very small or even monotypic, and might not be valid. Spiruroides might actually belong in the Gongylonematidae, which are not closely related to the Subuluridae as far as Spiruria go. Subfamily Allodapinae Inglis, 1958 Subfamily Labiobulurinae Quentin, 1969 Subfamily Leipoanematinae Chabaud, 1957 Subfamily Parasubulurinae Berghe & Vuylsteke, 1938 Subfamily Subulurinae Travassos, 1914

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