Catania R
C R Acad Hebd Seances Acad Sci D. 1978 May 8;286(18):1309-11.
Two categories of neurones at least can be demonstrated in Crepidula fornicata, some containing catecholamines (DA) others indolamines (5 HT). These cells, which are well localized, are often close to azanophilous neurosecretory cells but nevertheless distinct from the latter.