title: The larval apical organ in the holothuroid Chiridota gigas (Apodida): inferences on evolution of the Ambulacrarian larval nervous system.
authors.affiliation: Department of Anatomy and Histology, F13, University of Sydney, NSW 2006, Australia. mbyrne@anatomy.usyd.edu.au
authors.forename: Maria
authors.initials: M
authors.lastname: Byrne
authors.forename: Mary A
authors.initials: MA
authors.lastname: Sewell
authors.forename: Paulina
authors.initials: P
authors.lastname: Selvakumaraswamy
authors.forename: Thomas A A
authors.initials: TA
authors.lastname: Prowse
mesh_terms: D000818:Animals; D005075:Biological Evolution; D004447:Echinodermata / Q000033:anatomy & histology* / Q000378:metabolism; D007150:Immunohistochemistry; D009420:Nervous System / Q000033:anatomy & histology* / Q000378:metabolism; D012701:Serotonin / Q000378:metabolism
chemical_list: D012701:Serotonin