Rodlet cell of eel Anguilla anguilla discharging its content (arrow) in the interface region with a helminth parasite (D).

Rodlet cells in the intestine of Sea Trout (Salmo trutta trutta) of Scotland.

Occurrence of Rodlet Cells in the olphactory epithelium of Phoxinus phoxinus.

Gill of Abramis brama infected with crustacean Ergasilus sieboldi (E), note the presence of some Rodlet Cells (arrows).