| morphological, developmental and ecological evidence for a progenetic life cycle in neochasmus (digenea). | seven species of fishes, catostomus commersonii (lacépède), etheostoma nigrum rafinesque, micropterus dolomieu lacépède, notemigonus crysoleucas (mitchill), notropis hudsonius (clinton), perca flavescens (mitchill), and percina caprodes (rafinesque) from the st. lawrence river, quebec, canada, were found infected with progenetic specimens of neochasmus spp. in the orbits and/or the body musculature. worms displayed varying degrees of maturation. eggs occupied the entirety of the worm in late sta ... | 2006 | 16696430 |
| linking larvae and adults of apharyngostrigea cornu, hysteromorpha triloba and alaria mustelae (diplostomoidea: digenea) using molecular data. | abstract because the taxonomy of trematodes is based on adults, the larval stages of most digeneans cannot be identified to species based on morphology alone. molecular data provide a means of linking larval stages to known adults. we obtained sequences from the barcode region of cytochrome oxidase i (co1) from adult and larval parasites of fish, frogs, birds, and mammals across north america. sequences from adult apharyngostrigea cornu, hysteromorpha triloba, and alaria mustelae (diplostomoidea ... | 2011 | 21510747 |