title: The envelopes of the nervous system of pseudoscorpions and scorpions.
abstract: The present paper demonstrates that in pseudoscorpions and scorpions a compact collagen sheath consisting of fibrils with a 720 A period embedded in a neutral mucopolysaccharide surrounds the nervous system. The same material makes up the trabeculae running into the nervous elements of the ganglia and nerves. Both structures are separated from the neurons and their fibres by entire glial cells or by their processes. The neural lamella is surrounded by a thin and continuous wall of cells forming a storage-epithelium. Amoebocytes are able to circulate between the collagen fibrils of the neural lamella.
authors.affiliation: Instituto di Zoologia dell'Università, di Siena, Italy.
authors.forename: B
authors.initials: B
authors.lastname: Baccetti
authors.forename: G
authors.initials: G
authors.lastname: Lazzeroni