GORDON R. RICHARDS

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A simple technique using modified Mallory stain in the transferral of Gyrodactylus specimens from ammonium picrate-glycerin to a permanent mountant is described. Hamuli, their connecting bars and the penis sclerites are well defined by the technique as are muscles and tendons, cell nuclei, tegument and gland cells. As well as being useful in the study of(More)
Freeze fixation-dehydration was used for the first time in the preparation of attached Gyrodactylus for SEM viewing. The technique provided instant immobilization of specimens before death and negligible shrinkage throughout the fixation-dehydration process. Comparisons of sample means of two linear measurements of attached opisthaptors showed 20% more(More)
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