FIGURE 2. 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 2. A. Lateral and ventral chaetal bundles in IX–X. In vivo. Mezőföld, Hungary. B. Epidermal glands in transversal rows. In vivo. Kiskuság, Hungary. C. Clitellar glands, dorsal view. In vivo. Mezőföld, Hungary. D. Clitellar glands, dorsal view. Hyalin gland cells are dominant. Unstained, on slide. Fairbanks, Alaska. E. Ventral view of clitellar glands between the male copulatory organs. m= penial bulbs, black arrow shows the area without granular gland cells. Stained, on slide. Blåbukta, Svalbard. F. Clitellar glands, ventral view. Granular gland cells are present occasionally between the 2 male copulatory organs. Gland cells marked with black arrow, m= male copulatory organs. Stained, on slide. Zackenberg, Greenland.