FIGURE 4. A in Are Bryodrilus parvus Nurminen, 1970 and Bryodrilus librus (Nielsen and Christensen, 1959) (Annelida: Enchytraeidae) really different species? A revision based on DNA barcodes and morphological data

FIGURE 4. A. Nephridium in 9/10, ectal duct originates medioventrally (marked with black arrow). Stained, on slide. Ellef Island, Canada. B. Nephridia in posterior segments, ectal duct originates posteroventrally (marked with black arrow, i = intestine). In vivo. Mezőföld, Hungary. C. Coelomocytes (marked with black arrow). In vivo. Kiskunság, Hungary. D. Coelomocytes (marked with black arrows). In vivo. Russebukta, Svalbard. E. Sperm funnel (marked with black arrow) Stained, on slide. Ellef Island, Canada. F. Sperm funnel (marked with black arrow) In vivo. Mezőföld, Hungary.