larval LN period neuron Expression of Period was determined by per-lacZ fusion expression (Kaneko et al., 1997). Since larvae appear not to have LNd or l-LNv neurons (Kaneko et al., 1997), this term may be equivalent to FBbt:00100177 'larval s-LNv neuron' - https://orcid.org/0000-0002-1373-1705. FBbt:00001913 Neuron whose soma is located in a cluster between the larval optic lobe and the central brain that shows strong cycling of Period (FBgn0003068) expression from 4-5hr old L1 larvae located starting from around 4-5 hours after hatching. There are about 5 neurons per cluster. fly_anatomy.ontology larval lateral neuron LN VFB:FBbt_00001913 larval pacemaker neuron