|L'innervation des parois de la loge chez Flustra papyracea (Ellis et Solander) (bryozoaire chilostome) = Innvervation of the zoidal wall in Flustra papyracea Ellis and Solander (Bryozoa Cheilostomata)|
Lutaud, G. (1976). L'innervation des parois de la loge chez Flustra papyracea (Ellis et Solander) (bryozoaire chilostome) = Innvervation of the zoidal wall in Flustra papyracea Ellis and Solander (Bryozoa Cheilostomata). Cah. Biol. Mar. 17(3): 337-346
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723, more
A network of large irregular cell, similar to the parietal nerve net of Ctenostomata Stolonifera, is stained with methylene blue in the supple frontal wall of the live autozooid in F. papyracea. This network in the external wall exists together with a linear pathway at the level of communication pores in partitions, that Hiller first described in Electra. In active autozooids, the cells stained with methylene blue are arranged around the frontal area into a linear chain, following the motor parietal nerve. They are an equivalent for the diffuse nerve fibres of the sensory parietal branch of the great nerves of the tentacle sheath which surrounds the opesia in Electra. The other ramifications of the nerves of the tentacle sheath are similar in F. papyracea and Electra. The muscles of the ovicell might be served by a ramification of the motor parietal nerve of the autozooid. The homologies between the 2 pathways of the innervation of the external wall and partitions in Anasca and the parietal nerve net of Stolonifera are discussed.