title: [Neuropil internal apparatus coelomate: reconstruction of its early evolutionary steps].
authors.forename: Iu P
authors.initials: IuP
authors.lastname: Lagutenko
mesh_terms: D000818:Animals; D005075:Biological Evolution; D019581:Neuropil / Q000166:cytology*; D011077:Polychaeta / Q000033:anatomy & histology / Q000166:cytology*