Figure 3 in The tubificids (Annelida, Oligochaeta) of Lake Trasimeno and Lake Piediluco in Central Italy, with a study of SEM morphology of some species

Figure 3. Chaetae under SEM. Tubifex tubifex: a) anterior hair (H) and pectinate (Pe) dorsal chaetae; b) detail of a pectinate chaeta; c) dorsal postclitellar chaetae (H, hair; B, bifid dorsal chaeta without intermediate teeth); d) bundles 2 of ventral bifid chaetae. Psammoryctides barbatus: e) bundles of anterior dorsal chaetae (H, hair; Pa, palmate); f) detail of a palmate chaeta showing the fringes, each of them with a distal end thinner and folded backwards; g) dorsal postclitellar chaetae; h) bundles of ventral bifid chaetae, whose detailed apical region is zoomed in the inset.