Intraspecific variation among trematodes of the genus Telorchis

Investigating the Sublethal Effects of Cannabis sativa on Earthworms and Trematode Cercariae

“…Using a standard trematode identification guide (Schell, 1985), I identified the armatae-type cercariae as members of the family Plagiorchiidae based on certain key aspects. First, although cercariae in the family Telorchiidae have a similar morphotype, they almost exclusively infect physid snails instead of lymnaeids (Watertor, 1965). Additionally, as snail infections within the Plagiorchiidae are quite snail host specific (Blankespoor, 1977;Schell, 1985), the cercariae that I collected likely only represent a single species of the genus Plagiorchis given their preference for Stagnicola elodes as a host, although molecular techniques would be necessary to verify this.…”

Effects of thyroxine and insulin on the trematode Schistosomatium douthitti

“…showing an inverse relationship between worm burden and helminth size (Haley, 1962;Rankin, 1937;Read, 1951;Watertor, 1965) (Table 21).…”

Effects of thyroxine and insulin on the trematode Schistosomatium douthitti

“…showing an inverse relationship between worm burden and helminth size (Haley, 1962;Rankin, 1937;Read, 1951;Watertor, 1965 Three groups of infected L. emarginata, exposed to 3-5 douthitti miracidia per snail, were maintained at temperatures of 26° C., 22° C. and 18° C. respectively. As Graph 12 indicates, none of the snails maintained at 26° C. survived thirty days after exposure to miracidia.…”