a1 Department of Zoology and Comparative Physiology, The University, P.O. Box 363, Birmingham, B15 2TT
a2 The Laboratory, Marine Biological Association, Citadel Hill, Plymouth, PL1 2PB
a3 School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ
The Plymouth Marine Fauna (Marine Biological Association, 1957) list of monogenean parasites of fishes has been increased from 39 to 58 species and in addition 2 species have been recorded from a cephalopod host. The increase in listed species represents an increased ‘parasitological effort’ rather than an influx of new species into Plymouth waters.