Myxobolidae Thelohan 1892

Key to tailed genera of Myxobolidae 1a. Spores ovoid or pyriform, with two polar capsules and a single tail-like caudal process................................. 2 1b. Spores with two or more tail-like caudal processes or bifurcated tail; composed of same materials as shell valve......3 2a. Single tail-like caudal process; caudal process symmetrically located at the posterior end........................................................................................ Unicauda Davis, 1944 2b. Single tail-like caudal process, which may be forked at the very end, originating posterolaterally and asymmetrically.................. Laterocaudata Chen et Hsieh, 1984 3a. Spores tear-shaped shaped, with a single polar capsule, caudal process bifurcated..... Phlogospora Qadri, 1962 3b. Spores with two polar capsules and 2 caudal processes... 4 3c. Spores with two polar capsules and 4 caudal processes... 5 4a. Spores with two caudal processes.......................................................................... Henneguya Thélohan, 1892 4b. Spores with two caudal processes, asymmetric...................... Hennegoides Lom, Tonguthai et Dyková, 1991 4c. Spores with two caudal processes, extending in opposite directions............... Dicauda Hoffman et Walker, 1978 5a. Spores ellipsoidal with two caudal processes at each end of the spore; polar capsules situated asymmetrically............................................. Neohenneguya Tripathi, 1953 5b. Spores with four posterolateral caudal processes, two from each shell valve........................................................................... Tetrauronema Wu, Wang et Jiang, 1988 5c. Spores rhomboidal with four caudal processes pointing in the opposite direction, connected by transverse filaments............................ Trigonosporus Hoshina, 1952