Figure 3. T. zebra anterior end dorsal view. Note two prostomial lobes housing two pairs of eyes in a trapezoidal arrangement. As well as the three prostomial antennae; two lateral and one median. Dorsal cirri are also visible within this specimen andcan be seen extending from the body wall. A – Prostomial lobe. B – Two pairs of eyes. C – Dorsal cirri. D – Prostomial antennae.