Published online by Cambridge University Press: 06 April 2009
On the skin of the dorsal surface, and particularly on the dorsal fins of Scyllium canicula at Plymouth, occurs a parasite which appears to be identical with Paracotyle caniculae Johnstone 1911. In British waters it was first noticed by Scott (1906) who queried it as a species of Epibdella. Johnstone (1911) gave an account of the species but his specimens were immature, being in the male phase of their development and considerably smaller than those found at Plymouth.