1. 1) M. Yoshida, H. Tomoda, and K. Uematsu: Spinal and parachordal neurons in the eel leptocephali, Anguilla japonica, revealed by labeling with a fluorescent dye. Neurosci. Lett., 195, 206-208 (1995).
2. 2) H. Tomoda and K. Uematsu: Morphogenesis of the brain in larval and juvenile Japanese eels, Anguilla japonica. Brain Behav. Evol., 47, 33-41 (1996).
3. 3) J. R. Fetcho: A review of the organization and evolution of motoneurons innervating the axial musculature of vertebrates. Brain Res. Rev., 12, 243-280 (1987).
4. 4) W. A. Smit, B. L. Roberts, and E. H. Velzing: Changes in size and number of spinal motoneurons in relation to growth of the musculature in the eel, Anguilla. Dev. Brain Res., 58, 73-80 (1991).
5. 5) R. B. de Heus, P. C. Diegenbach, W. van Raamsdonk, and B. L. Roberts: Changes in enzyme histochemical profiles of identified spinal motoneurons of the European eel, Anguilla anguilla, following cordotomy. Histochem. J., 28, 335-340 (1996).