title: [Contribution to the study of Microphallidae travassos, 1920 (Trematoda). XXXI. On the shortening of microphallid life-cycles, concerning Maritrema oocysta (Lebour, 107)].
abstract: In France, the larval forms (daughter sporocysts, cercariae and metacercariae) of M. oocysta develop in Hydrobia ulvae Pennant living on Norman coasts of the Channel; they are described again. The microphallid family offers two kinds of development: the first sort concerns the appearance of a progenetic metacercaria, the second concerns that of a confined cercaria. Twelve examples illustrate the tendencies of this evolution.
mesh_terms: D000818:Animals; D012908:Snails / Q000469:parasitology; D014200:Trematoda / Q000033:anatomy & histology / Q000254:growth & development*
vernacular_title: Contribution a l'etude des Microphallidae Travassos, 1920 (Trematoda). XXXI. - De la condensation des cycles evolutifs chez les Microphallidés a propos de Maritrema oocysta (Lebour, 1907)