Fig. 6. Effect of 1% dimethyl sulfoxide (DMSO) and two amiloride concentrations on un-bled (closed circles) and bled (gray bars) snails. N=10 for each concentration/treatment. Both un-bled and bled snails were exposed to DMSO or amiloride. Asterisk indicates value significantly less than DMSO control value. Differences between un-bled and bled conditions within treatments were significantly different. There was no significant difference between uptake rates in regular control relative to rates in the DMSO carrier control medium. Values are means ± s.e.m.