title: Aspects of the fine structure of symbiotes and related host tissues in nephridia of Allolobophora caliginosa typica (Annelida: Lumbricidae).
mesh_terms: D000818:Animals; D000845:Annelida / Q000166:cytology*; D003239:Connective Tissue Cells; D005088:Exocrine Glands / Q000166:cytology*; D008854:Microscopy, Electron; D012287:Rickettsiaceae / Q000166:cytology*