Neuroanatomical evidence for electroreception in lampreys

Abstract

The patterns of the anterior lateral-line afferents of Lampetra fluviatilis as revealed by transganglionic transport of horseradish peroxidase are described. The afferents form two roots in entering the rhom bencephalon. Fibers ofthe dorsalmost root can be traced to a short dorsal fascicle which runs along the dorsal nucleus. The ventral roots formtwo fascicles adjacent to the nucleus intermedius. Comparison with urodeles indicates that lampreys, like urodeles and other anamniotic vertebrates are electroreceptive. © 1984, Walter de Gruyter. All rights reserved.