title: [Comparative electron microscopic study of the spermatozoan morphology and spermiogenesis of various Gnathostomula species: Gnathostomula paradoxa (Ax 1956), Gnathostomula axi (Kirsteuer 1964), Gnathostomula jenneri (Riedl 1969)].
mesh_terms: D000818:Animals; D000845:Annelida / Q000166:cytology*; D002462:Cell Membrane; D002467:Cell Nucleus; D006056:Golgi Apparatus; D008297:Male; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D013045:Species Specificity; D013094:Spermatozoa / Q000166:cytology* / Q000254:growth & development; D013737:Testis / Q000166:cytology*
vernacular_title: Vergleichende elektronenmikroskopische Untersuchung der Spermienmorphologie und Spermiogenese einiger Gnathostomula-Arten: Gnathostomula paradoxa (Ax 1956), Gnathostomula axi (Kirsteuer 1964), Gnathostomula jenneri (Riedl 1969)