The Fellodistomidae (Digenea) of fishes from the northeast Atlantic Rodney A. Bray & David I. Gibson Jk Department of Zoology, British Museum (Natural History), Cromwell Road, London SW7 5BD Contents Introduction 199 Materials and methods ........... 199 Systematic section ............ 200 Family Fellodistomidae 200 A taxonomic history of the group ........ 200 Some comments on forms previously treated as fellodistomids . . . 201 Aspects of biology ........... 202 Subfamily Fellodistominae ......... 202 Fellodistomum fellis .......... 205 Steringophorus furciger . . . . . . . . . .212 Steringophorus agnotus . . . . . . . . . .217 Steringophorus blackeri .......... 220 Steringophorus pritchardae ......... 223 Steringophorus thulini .......... 226 Olssonium turneri ........... 229 Steringotrema pagelli .......... 234 Steringotrema divergens .......... 239 Steringotrema ovacutum .......... 242 Prudhoeus nicholsi ........... 245 Subfamily Baccigerinae .......... 248 Bacciger bacciger ........... 250 Pronoprymna ventricosa .......... 255 Subfamily Xenoperinae .......... 259 Proctoeces maculatus .......... 262 Subfamily Monascinae .......... 268 Monascus filiformis .......... 268 Subfamily Tergestiinae .......... 274 Tergestia laticollis ........... 276 Host-parasite list . . . . . . . . . . . .281 Acknowledgements .......... References ............. 283 Introduction This is the third in a projected series of papers on the helminth-fauna of fishes from the northeast Atlantic region. The family discussed is the Fellodistomidae, a group restricted mainly to marine fishes, but occurring occasionally in freshwater fishes and as adults in marine invertebrates. Materials and methods The materials and methods used in this investigation are outlined in the first two papers in this series (Bray & Gibson, 1977; Gibson & Bray, 1977). In addition to the sources of material mentioned in these two papers, we have collected further material at Aberdeen in March-April 1977, and aboard MAFF RV Cirolana in NE Atlantic in 1978. In this report we have used the nomenclature and classification of fishes presented by Hureau & Monod (1973). GENERAL 29 FEB1< Bull. Br. Mus. nat. Hist. (Zool.) 37 (4) : 199-293 Issued 28 February 1980 199
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