Index 



209 



stenothermic animals, 22 

 Stenotomus, oxygen needs, 101 

 stoneilies, larvae in brackish water, 



44 

 stratification, of animals, 54 

 stridulating organs, 127 

 substratum, 55 

 subterraneum animals, 37, 41 



habitats, 37 

 succession, 51 

 sulphates, in sea water, 73 

 sulphides in sea water, 82 

 sulphur, 6 



sunfishes, in estuaries, 26 

 swamps, 9, 17, 32 



as refuges, 64 



drying up, S7 



oxygen, 34, 104 



respiration in, 109 



unstable, 92 



variability, 36 

 swim-bladder, in respiration, 104, 



105 

 symbionts, 140 

 Symbranchus, 60 



Taliturus saltator, 29 

 Talorchestia, 65 



zonation, 86 

 Tamar River, 28 

 tautog, oxygen used, 58 

 Telphusa fluviatile, blood, 118 

 temperature, 82 



of sea water, 83 



regulation, 96 



subterranean, 37 



variation in freshwater, 14 

 in marshes, 33, 36 



on beach, 22 

 on land, 15 

 Tenebrio, fasting, 88 

 Tetramitus salinus, 71 

 tetronerythrin, in blood of Crustacea, 



121 

 Thais florid ana, 43 

 Thalamita, respiration, 109 

 Thaldssina, 38 

 Thdlassiosira bait tea, 29 



T. b. batava, 29 



T. excentrica, 29 

 Thames River, 27, 28 

 thermodynamics, laws, 6 

 thyroxin in vertebrates, 123 

 ticks, argasid, B)^ 



fasting; 92 



ixodid, ^^ 



spreading parasites, 50 

 tides, 17, 19, 79 



on beach, 22 

 Tinea, moisture requirement, 88 

 Tintinnidae, 33 

 toads (see also amphibians) 



development, 135 



lungs, 110 



spade-foot, 135 



temperatures, 139 



toleration of air, %7 

 toleration ranges, 69 

 tracheae of arthropods, 10 

 trematodes, parasites, 67 

 Trichodina, as parasites, 141 

 Trichoptera, salt resistance, 72 

 trihydrol, as catalyst, 14 

 trilobites, 7 

 Triturus, sense organs, 128 



