| an ultrastructural study of reproduction in the sporocysts of prosorhynchoides gracilescens (digenea: bucephalidae). | the germinal development in prosorhynchoides gracilescens sporocysts was studied using electron microscopy. the germinal cells proliferated and developed within multiple floating germinal masses located in the terminal portions of sporocyst branches. the germinal masses were composed of supporting and germinal cells. supporting cells possessed numerous flattened extensions that spread around and between developing germinal cells to form three-dimensional mesh network, which maintained the integr ... | 2007 | 17235547 |
| prosorhynchoides gracilescens (rudolphi, 1819) (digenea: bucephalidae) from lophius piscatorius l. is a species complex: a redescription of this species (sensu stricto) from the western mediterranean and the description of p. borealis n. sp. from the northern north-east atlantic. | the bucephalid digenean prosorhynchoides gracilescens (rudolphi, 1819) is a common intestinal parasite of the angler fish lophius piscatorius in european marine waters. detailed studies of new material collected off the coasts of both marseilles and corsica in the western mediterranean, and comparison with museum material from the northern north-east atlantic, indicated that the accepted concept of this species comprises two distinct taxa. the mediterranean form occurs in relatively small number ... | 2006 | 16758297 |
| an ultrastructural study of excretory system development in the cercariae of prosorhynchoides gracilescens (rudolphi, 1819) and prosorhynchus squamatus odhner, 1905 (digenea, bucephalidae). | the ultrastructure of the developing excretory system of prosorhynchoides gracilescens and prosorhynchus squamatus cercariae is described. the development pattern was similar in both species. in early embryos the two main collecting tubes were composed of a layer of cells which were wrapped around the lumen. later, the tubes fused and the excretory epithelium of the fusion zone and that of the lateral caudal ducts became a syncytium. the collecting tubes in the cercarial body retained their cell ... | 2004 | 15376776 |