title: [2 new species of gregarines parasites of annelides: Pleurocystis eiseniellae of Eiseniella tetraedra Sav.)Oligochaeta), Pterospora petaloprocti of Petaloproctus terricola Quatr. (Polychaeta)].
abstract: The first species belongs to the genus Pleurocystis (in the Oligocheta host, Eiseniella tetraedra). It is characterized by early syzygies with lateral connection and navicular sporocysts with similar poles. It differs from the only species already described of the genus and is named Pleurocystis eiseniellae n. sp. The second one is related to the genus Pterospora (in the Polychaeta host, Petaloproctus terricola) but differs from the three species already known by its size and number of terminal digitations in specimens always found in syzygy. The sporocysts with dissimilar poles (one rounded, the other neck-shaped) show a loose epispore. This Gregarine in named Pterospora petaloprocti n. sp.
mesh_terms: D000818:Animals; D000845:Annelida / Q000469:parasitology*; D016782:Apicomplexa / Q000145:classification*; D009835:Oligochaeta / Q000254:growth & development / Q000469:parasitology* / Q000648:ultrastructure; D011077:Polychaeta / Q000254:growth & development / Q000469:parasitology* / Q000648:ultrastructure
vernacular_title: Deux nouvelles espèces de grègarines parasites d'annélides: Pleurocystis eiseniellae d'Eiseniella tetraedra Sav. (oligochète). Pterospora petaloprocti de Petaloproctus terricola Quatr. (polychète).