John de Jong Here the spawn is visible, Bernard Picton. D. coronata?
Bernard Picton The point is that what we call Doto coronata may actually be a group of species and not a single species. There are small differences between the animals on different hydroids and these may indicate that there are several undescribed species. In 1976 Henning Lemche decided that these differences were species level, and split Doto coronata into several species, including Doto dunnei, Doto maculata, Doto eireana and Doto koenneckeri. I was able to go out and observe the differences he had found by targeting the hydroids he'd associated with these animals.