Fine structure of the canal system joining sister gametocytes in Tetrodontophora bielanensis (Waga/Collembola: Apterygota).
D007313:Insecta / Q000648:ultrastructure*; D008297:Male; D013087:Spermatids / Q000648:ultrastructure; D013090:Spermatocytes / Q000648:ultrastructure; D013094:Spermatozoa / Q000648:ultrastructure*