Fig. 9

Ground pattern of the autozooidal innervation in cheilostomes. A Lateral view of the autozooidal innervation pattern without lophophore. B View from the distal side showing the innervation pattern of the lophophore C Cross section of a tentacle. Abbreviations: abr – annular branch of trifid nerve, afc – abfrontal cilia, afn – abfrontal tentacle neurite bundle, cg – cerebral ganglion, CON – circumoral nerve ring, ctsn – compound tentacle sheath nerve, dtsn – direct tentacle sheath nerve, fc – frontal cilia, itn – intertentacular neurite, itp – intertentacular pit, lc – lateral cilia, lfc – laterofrontal cilia, lfn – laterofrontal tentacle neurite bundle, lvn – laterovisceral neurite bundle, mfn – mediofrontal tentacle neurite bundle, mlvn – mediolaterovisceral neurite bundle, mvn – mediovisceral neurite bundle, pbs – parietal branching site, pdin – parietodiaphragmatic nerve, php – pharyngeal nerve plexus, pmn – parietal muscle nerve, opn – opercular nerve, rdn – radial nerve, spn – sphincter nerve, tco – tentacle coelom, tfd – trifid neurite bundle