Fig. 11

3D Reconstruction of the central nervous system and the lophophoral base of Asajirella gelatinosa. A Lateral view of the cerebral ganglion showing several projections: a circumoral nerve ring projects orally, epistomial horns ascend into the epistome and on the anal side ganglionic horns run into the lophophoral arms. B, C Distal view of the cerebral ganglion showing that it is located between pharynx and intestine and the circumoral nerve ring fully encloses the pharynx. D Anal view of the lophophoral base showing the epistome in front of the cerebral ganglion with traverse muscles projecting between the epistomial horns. The ganglionic horns project along the lophophoral arms. E Oblique frontal view on the lophophoral base showing the dome-shaped epistome in front of the cerebral ganglion, above the pharynx. The forked canal above the epistome supplies the tentacles of the lophophoral concavity. cg cerebral ganglion, con circumoral nerve ring, ec epistome coelom, eh epistomial horns, em epistome musculature, enb epistome neurite bundles, ep epistome, fc forked canal (tentacles), gh ganglion horns, int intestine, l lophophore, lb lophophoral base, mo mouth opening, ph pharynx, t tentacle, tc tentacle coelom