Fig. 1 in Large lungworms (Nematoda: Dictyocaulidae) recovered from the European bison may represent a new nematode subspecies

Fig. 1. Dictyocaulus viviparus of European bison, anterior end. (A) Male, anterior end in optical section, showing head, cephalic vesicle (cv), esophagus, nerve ring (nr), lateral view. (B) Female, anterior end in optical section, showing buccal capsule (bc), buccal capsule wall (bcw), cephalic vesicle (cv), nerve ring (nr), and excretory pore (ep), lateral view. (C) Cephalic region, scanning electron microscopy, showing two lateral amphids (LA) and four submedian papillae (SCP).