506
M. V. L. BENNETT
Fig. 11. Histology of a tonic receptor of the gymnotid Eigenmannia. The lumen
( L ) of the receptor cavity is connected to the exterior by a canal. Receptor cells ( R )
are embedded in the wall of the receptor cavity. The dark oval region at the base
of each receptor cell is the terminal of the afferent nerve fiber. The layer of flattened
cells ( F ) abuts on the wall of the receptor canal. From Szamier and Wachtel ( 1969).
M. V. L. BENNETT
Fig. 11. Histology of a tonic receptor of the gymnotid Eigenmannia. The lumen
( L ) of the receptor cavity is connected to the exterior by a canal. Receptor cells ( R )
are embedded in the wall of the receptor cavity. The dark oval region at the base
of each receptor cell is the terminal of the afferent nerve fiber. The layer of flattened
cells ( F ) abuts on the wall of the receptor canal. From Szamier and Wachtel ( 1969).