Subuluridae

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
 * Allodapa Diesing, 1861
 * Aulonocephalus Chandler, 1935
 * Cyclobulura Quentin, 1977
 * Labiobulura Skrjabin & Schikhobalova, 1948
 * Tarsubulura Inglis, 1958
 * Leipoanema Johnston & Mawson, 1942

Subfamily Parasubulurinae Berghe & Vuylsteke, 1938 Subfamily Subulurinae Travassos, 1914
 * Parasubulura Berghe & Vuylsteke, 1938
 * Inglisubulura Devamma, 1977
 * Oxynema Linstow, 1899
 * Primasubulura Inglis, 1958
 * Spiruroides Cameron & Parnell, 1933 (tentatively placed here)
 * Subulura Molin, 1860
 * Travassallodapa López-Neyra, 1945