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Journal of Experimental Biology 33,417-421 (1956)
Published by Company of Biologists 1956

Pressure Receptors in the Fins of the Dogfish Scylliorhinus Canicula

OTTO LOWENSTEIN ¹

¹ Department of Zoology and Comparative Physiology, Birmingham University

1. The presence of so-called terminal corpuscles in the connective tissues of the fins of Scylliorhinuis canicula, first described by Wunderer in 1908, is confirmed.

2. It is demonstrated that they are pressure receptors with a slow rate of adaptation.

3. From their topographic distribution and from their mode of response to mechanical stimulation, it is postulated that the terminal corpuscles serve as proprioceptors in the widest sense of the term by signalling the spatio-temporal patterns of active or passive deformation of the fin.

4. Their topographic distribution makes it possible to distinguish their responses from those of sense endings associated with the muscles or tendons of the fin.