FIGURE 13 in Levinsenia species (Annelida: Polychaeta: Paraonidae) from the Sea of Marmara with descriptions of two new species

FIGURE 13. Levinsenia tribranchiata (ESFM-POL/2013-1171). A, Dorsal view of prostomium and first chaetiger; B, Ventral view of prostomium and first chaetiger with a ciliated proboscis; C, Ventral view of prostomium and first chaetiger with ciliary slits on anterior lips (csal); D, Lateral view of prostomium with lateral organ, nuchal organ and eversible palpode; E, Lateral organ on lateral side of prostomium. Scale bar: A, 52 µm; B, 87 µm; C, 63 µm; D, 40 µm; E, 7 µm. Abbreviations: csal, ciliary slits of anterior lips; ep, eversible palpode; lo, lateral organ; no, nuchal organ.