FIGURE 10 in A new species of Polyophthalmus (Annelida, Opheliidae) from the Arabian Gulf with an insight on internal anatomy and diversity of the genus

FIGURE 10. Polyophthalmus zhadanae sp. nov. Micro-CT images of a specimen from sample P12977 (paratype MNCN 16.01/19119). (A) anterior end, 3D frontal view; (B–E) prostomium, 3D transverse sections; (F) anterior end, 3D transverse section. Abbreviations: adbv—antero-dorsal blood vessel/s; br—brain; dlml—dorsal longitudinal muscle layer; norm—nuchal organ retractor muscle; nuo—nuchal organ; obm—oblique muscles; oes—oesophagus; ppa—prostomial papilla; ppabr— prostomial papilla blood ring; ppabv—prostomial papilla blood vessel; prb—proboscis; sto—stomach; stobpl—stomach blood plexus; vlbv—ventral longitudinal blood vessel; vlml—ventral longitudinal muscle layer; vnc—ventral nerve cord.