Funding Information: We thank R. Parekh and Janelia CAT for introducing us to FAFB and training us in EM tracing. K. Coates and F. Li for reviewing some of our manually traced neurons in FAFB. S. Huston for tracing of CNMNs, VCNMN and some cLPTCrn cells together with S. Imtiaz and B. Gorko, and for helping identify neck motor neurons. A. Li and R. Wilson for their help in reconstructing DNa02. S. Namiki and G. ...