Long ascending projections of the spinal dorsal horn in a teleost, Sebastiscus marmoratus.

Ascending projections of the spinal cord in a teleost, Sebastiscus marmoratus, were studied by means of the horseradish peroxidase tracing method. Projecting fibers were observed in the reticular formation, vagal lobe, octaval nuclei, a dorsomedial portion of the descending nucleus of the trigeminal nerve, corpus cerebelli and nucleus ventromedialis thalami.