Fig. 15

Peripheral nervous system of Asajirella gelatinosa, stainings against acetylated-α-tubulin. A Overview of the nervous system of the digestive tract showing a dense plexus in the pharynx and several longitudinal neurite bundles in the cardia and caecum. Few neurite bundles are present in the intestine (arrows). B Detail of the pharynx innervation showing dense plexus of longitudinally bifurcating neurite bundles. Tentacle innervation of the oral tentacles is also evident C, D Details of the proximal tip of the caecum showing a basket-like plexus of branching (C) and proximal fusing (D, arrow) longitudinal neurite bundles. arn additional radial nerve, ca cardia, cae caecum, cb caecum basket, ci cilia, int intestine, ln longitudinal neurite bundles, otn oral tentacle nerves, ph pharynx, pp pharyngeal plexus, rn radial nerve