Figure 



No. Page 



83 Effect of salinity and temperature change on the 



blood magnesium ion regulation of Penaeus aztecus 



in relation to isosmotic line. Animals were 



tested from control conditions of 15°/ooS and 18°, 



25°, and 32°C 158 



84 Effect of salinity and temperature change on the 



blood potassium ion regulation of Penaeus aztecus 



in relation to the isosmotic line. Animals were 



tested from control conditions of 15°/ooS and 18°, 



25°, and 32°C 160 



85 Comparison of the time course of osmoregulatory res- 



ponses in Penaeus aztecus in relation to the tem- 

 perature change. Animals were tested from control 

 conditions of 15°/ooS and 25°C 161 



86 Comparison of the time course of osmoregulatory 



responses in Penaeus aztecus in relation to the 



temperature change. Animals were tested from 



control conditions of 15°/ooS and 32°C 162 



87 Comparison of the time course of osmoregulatory 



responses in Penaeus aztecus in relation to the 



temperature change. Animals were tested from 



control conditions of 15°/ooS and 18°C 164 



88 Comparison of the time course of chloride ion regu- 



lation in Penaeus aztecus in relation to tempera- 

 ture change. Animals were tested from control 

 conditions of 15°/ooS and 25°C 166 



89 Comparison of the time course of chloride ion 



regulation in Penaeus aztecus in relation to 



temperature change. Animals were tested from 



control conditions of 15°/ooS and 32°C 167 



90 Comparison of the time course of chloride ion 



regulation in Penaeus aztecus in relation to 



temperature change. Animals were tested from 



control conditions of 15°/ooS and 18°C , . 168 



91 Comparison of the time course of calcium ion 



regulation in Penaeus aztecus in relation to 



temperature change. Animals were tested from 



control conditions of 15°/ooS and 25°C 170 



92 Comparison of the time course of calcium ion 



regulation in Penaeus aztecus in relation to 



temperature change. Animals were tested from 



control conditions of 15°/ooS and 32°C 171 



16 



