Index 



199 



Eristalis, in hot springs, 84 

 estuaries, 17, 22, 26 



as refuges, 64 



doorway to fresh water, 31 



fauna, 28 



salinity, 24 

 Eucdulia, in mud, 87 

 euryhalin, animals, 84, 95 



fishes, 27, 30, 75, 97 



invertebrates, 116 



oysters, 74 

 Eurytemora affinis, 29 



E. hirudinoides, 29 



£. hirudo, 29 

 evolution, 3 



of secondary sexual characters, 

 53 

 excretion, 129 



by integument, 96 



malpighian tubes, 94 



organs, 143 



fertilization, internal, 132 

 fishes (see also fishes, bony; lung- 

 fishes; and various groups) 



aestivating- 36 



air-breathing, 34, 60, 87, 103, 

 105 



anadromous, 27 



black swallower, 92 



body fluids, 41, 104, 112 



bowfins, 104 



Chondrostei, 110 



climbing perch, 128 



CO2 poisoning, 59 



Crossopterygii, 110, 126 



desiccation, 89 



Dipnoi, 93, 95, 110, 129 



eyes, 128 



excretion, 129, 130 



euryhaline, 27 



estuarine, 27 



elasmobranchs, 110 



food, 139 



fresh-water, body fluids, 99 



galaxids, 36 



ganoids, 36, 95, 104, 110, 126, 



129 



in fresh water, 64 

 gars, 104 



gray snapper, predaceous, 66 

 Holostei, 110 

 in caves, 39, 40 

 in saline water, 44 

 land, 60 

 loaches, 109 

 lobe-finned, 37, 126 

 metabolism, 123 

 minnow, 75, 77 

 origin, 14 

 parasites, 68 

 pond activities, 90 

 respiration, 102, HI 

 reproduction, 134 

 salt tolerance, 72, 74, 75 

 silurids, 105 

 structure, 94 

 swamp, 87 

 teleosts, 72,73, 78, 95,97, 110, 



117, 129 

 toadfish, 101 



Fishes, bony, blood, 8, 125 

 body fluids, 99, 117 

 invade sea, 44 

 origin, 7, 9, 31, 36, 115 



flagellates, as parasites, 67 



