title: Necessity of an adequate nerve supply for regeneration of the amputated pectoral fin in the teleost Fundulus.
abstract: The present work deals with determination of the threshold of nerve fibers per unit of amputation surface necessary for regeneration of the pectoral fins of a teleost, Fundulus. Partial denervation of the amputated pectoral fins, i.e., resection of one or two of the three nerves of the brachial (=pectoral) plexus revealed that the presence of a single one allows the amputated fin to regenerate. From these data and others obtained previously, it is concluded that the nervous requirements for a teleost fin to regenerate are similar or slightly lower than those for tetrapods, for example in the newt, which are capable of appendage regeneration.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005121:Extremities / Q000294:innervation; D005399:Fishes / Q000502:physiology*; D007695:Killifishes / Q000502:physiology*; D012038:Regeneration