||Nematode Caenorhabditis elegans
||Simonsen KT, Moerman DG, Naus CC. Gap junctions in C. elegans. Front Physiol. 2014 Feb 11 5 :40 doi: 10.3389/fphys.2014.00040 p.2 left column bottom paragraphPubMed ID24575048
||White JG, Southgate E, Thomson JN, Brenner S. The structure of the nervous system of the nematode Caenorhabditis elegans. Philos Trans R Soc Lond B Biol Sci. 1986 Nov 12 314(1165):1-340 DOI: 10.1098/rstb.1986.0056PubMed ID22462104
||Primary source abstract: "The structure and connectivity of the nervous system of the nematode Caenorhabditis elegans has been deduced from reconstructions of electron micrographs of serial sections."
||P.2 left column bottom paragraph: "Around 10% of the synapses in the C. elegans nervous system are comprised by gap junctions and obviously, they are vital for the animal (primary source)." Primary source abstract: "Most of the morphologically identifiable synaptic connections in a typical animal are described. These consist of about 5000 chemical synapses, 2000 neuromuscular junctions and 600 gap junctions." BioNumbers editor: 600 gap junctions out of a total of 7,600 synapses are 600/7600≈0.1=≈10%