14 Contents. 



II. Trematodes from fish — Continued: 



Monostomidas 69 



Barisomum erubescens gen. et sp. nov 69 



Himasomum candidulum gen. et sp. nov 71 



Paramphistomidae 72 



Cleptodiscus reticulatus gen. et sp. nov 72 



Siphoderidae fam. n 74 



Siphodera (gen. nov.) vinaledwardsii (Linton) 74 



Stegopa globosa gen. et sp. nov 75 



Metadena crassulata gen. et sp. nov 76 



Prodistomum gracile gen. et sp. nov 76 



Genolopa gen. nov 77 



Genolopa ampullacea gen. et sp. nov 77 



Genolopa truncata gen. et sp. nov 78 



Gasterostomidae 79 



Gasterostomum gracilescens Rudolphi (?) 79 



Gasterostomum sp. (near G. baculum Linton) 79 



Gasterostomum sp., from Mycteroperca venenosa 80 



Gasterostomum sp., from Barracuda 80 



Heteracotylea 81 



Microcotyle incisa sp. nov 81 



Udonella socialis sp. nov 82 



Aspidocotylea 82 



Aspidocotyle ringens Linton 82 



Deontacotylea subord. n 83 



Deontacylix ovalis gen. et sp. nov 83 



Index 85 



Explanation of plates 87 



