Fig. 3. Pontobdella muricata. Fig. 4. Protoclepsis tessellata. 
Fig. 3. Pontobdella muricata. Diagram showing annulation and external features on 
dorsal surface. Somites indicated in Roman numerals. 
Fig. 4. Protoclepsis tessellata. Diagram showing annulation, position of spots and 
other external features on dorsal surface, an. Anus. Somites indicated in Roman 
numerals and rings in figures. 
