The pectoral appendages of Prionotus and their innervation

Albro D. Morrill
1895 Journal of morphology  
THE TrigZidae have attracted the attention of European anatomists for more than three-quarters of a century on account of the remarkable finger-like processes of the pectoral fins. These processes, which have proved to be free fin rays, were found to be very richly supplied with nerves, and enlargements, or lobes, were found on the dorsal surface of the spinal cord, where these nerves united with it. Special efforts have been made to discover sense buds or other end organs in the epidermis of
more » ... the epidermis of these free fin rays. The strong resemblance to such dermal appendages as barbels, led Merkel ( I ) to characterize them as wholly analogous in structure and function. No one has hitherto succeeded in finding sense-organs on these rays similar to those found on barbels, and there are great differences of opinion in regard to the peripheral termination of the nerves in these organs. In the hope of settling some of these questions, I undertook the study of the Gurnards found along the Atlantic coast.
doi:10.1002/jmor.1050110105 fatcat:j7bis2ljafgs3omwvosz4l63oy