Abstract: This study examined the behavioral responses of two species of larval salamanders, Desmognathus quadramaculatus and Eurycea cirrigera, to the upstream presence of various potential predators.  The predators investigated were adult D. quadramaculatus, larval Gyrinophilus porphyriticus and Cambarus bartonii, with the control conditions being no predator present.  Twenty individuals of each larval species were exposed to each of the predators for a two minute period, and their behavior observed.  The distance and direction moved, as well as the exposure status of the larvae were recorded.  There was no significant effect of the treatments on any of these factors.  However, for D. quadramaculatus larvae there was a significant effect of time on the distance moved.  If there is truly no effect of predator presence on the behavior of these larvae, this would indicate that predators do not influence their rates of stream drift through altered activity levels.  Since these predators do not appear to be influencing the population density by altering the immigration or emigration rate of the prey, mortality would be the only effect of predators.