Figure 2 in REVIEW How the discovery of oligochaete regeneration during the Enlightenment was pivotal to the advancement of annelid research

Figure 2. Parts of plates 6 and 7 of Trembley (1744) showing two newly discovered microdriles that he used as food for the captive hydra. 'Fig. 3' shows the minute worms named 'anguillettes' and which Réaumur renamed 'mille-pieds à dard', endowed with eyes and a fleshy proboscis, which could float and swim by undulatory motion [the naidid Stylaria lacustris (Linnaeus, 1758)]. 'Figs 2, 4, 6' show the mud-dwelling tubificine worms, which Trembley had noticed bristling on the bottom of ditches and which were also used by him to feed the hydras.