Figs. 15–22

Macroponema beveridgei Mawson, 1978 from Osphranter robustus and O. antilopinus. 15 Anterior region, left lateral view. 16 Buccal capsule, lateral view. 17 Buccal capsule, ventral view. 18 Anterior extremity, apical view. 19 Mouth opening, apical view, showing detail of cephalic papillae and amphids. 20 Transverse optical section through buccal capsule. 21 Oesophageal corpus, showing transverse sclerotisations of lining. 22 Transverse section of oesophagus showing sclerotisations of lining. Scale-bars: 15–18, 20–22, 0.1 mm; 19, 0.01 mm