Description: "Cordons crescent-shaped in cross section with serrated edges, invaginated at one side forming groove. Deirids large and tricuspid.
Male: Caudal alae supporting four pairs of preanal and five pairs of postanal pedunculate papillae. Left spicule filiform with sightly twisted and pointed distal end. Right spicule robust, usually with transversely striated cuticle at proximal half and short attenuated distal end. Tail short with rounded tip.
Female: Vagina surrounded by prominent muscle fibers. Tail short with rounded tip" (Wong and Anderson, 1986).
Life Cycle: Indirect life cycle where adults are found under the gizzard lining of birds and L1, L2, and infective L3 larvae develop in the haemocoel of ostracods. Infective Larvae consumed by tadpoles and cyprinids forms cysts inside of this host. Transmission to the bird host occurs when birds eat infected tadpoles (Anderson, 2000).
Sources: Wong, P.L. and Anderson, R.C. 1986. Revision of the genus Desportesius Chabaud and Campana, 1949 (Nematoda: Acuarioidea) mainly from the gizzard of ciconiiform birds. Can. J. Zool. Vol. 64, p. 2520-2530.
Anderson, R.C. 2000. Nematode parasites of vertebrates: their development and transmission. 2nd edition, p. 558.