The mode of attachment and relation to the host in Apiosoma piscicola Blanchard and Epistylis lwoffi Fauré-Fremiet, ectocommensals of freshwater fish.
D000818:Animals; D016798:Ciliophora / Q000648:ultrastructure; D005399:Fishes / Q000469:parasitology*; D005618:Fresh Water; D005880:Gills / Q000469:parasitology / Q000648:ultrastructure; D008854:Microscopy, Electron