CL fascicle fly_anatomy.ontology centrolateral fascicle CL tract FBbt:00005901 Lateral longitudinal fascicle of the larval ventral nerve cord, found between the dorsolateral (DL) and ventrolateral (VL) fascicles (Landgraf et al., 2003). C4 fascicle VFB:FBbt_00005901 Cl tract lateral longitudinal fascicle