

INDEX 





social wasps, i6 



societies, insect, 2.1., 159 



society, human, zi, 8i 



soils, formation of, 31 



solenogasters, ixi 



solitary bees, 11 



solitary wasps, 11, 2.3 



sow-bugs, ^63 



spaniel, 4 



specialization, irreversibility of, i04 



species, xii, 130 



spiders, 10, 11, 35, 59, 61, 6i, 69,117, 



Z02., z6z 

 spiders, flight of, 6i 

 spinning ants, 7 

 spiny-headed worms, 14^, 143, 164, 



2-73. 2.74 

 sponge, bath, -lGG 



sponges, GG, loz, izi, 155, 193, 141, 



Z45, 2.65, -Lji, -L-j-L, 2.73 

 sporocyst, 151, i.'p. 

 sporozoans, z66 

 squid, 65, 67, 79, 94, 98, 12.0, 167, 182., 



x6i 

 squirrels, 7, 17, 48, 60 

 starfishes, 67, 72., 78, 84, 100, loi, ixi, 



i5o> i53> 155. 157. 167, 182., ioi, ill, 



M7. 2.63 

 Stmt or, 151 



swallowtail, African, 138 

 swallowtail, common Asiatic, 138 

 swallowtail, common black, 139, 141 

 swallowtail, common western, 141 

 swallowtail, Sardinian, 141 

 swallowtail, yellow, 34, 137, 140 

 swallowtail, yellow European, 141 

 swallowtails, Aristolochia, 32., 139, 140 

 symmetries of animals, 171 



Tadpoles, i6z, 183 



tailed blue, 134 



tailor-birds, iz, 17 



tapeworms, 1Z4, i6z, 163, Z4z, Z43, 



Z51, Z55, Z56, Z64, Z65, Z73, Z74 

 tapirs, 43, 93, zz8 

 tawny emperor, 34 

 teleosts or bony fishes, i8z 

 termites, 8, 11, 13, 16, iS, 139, 159, 



Z33, z66 

 tern, Arctic, 81 

 terrier, 4 

 Tertiary, 171, 173, 174 (see table on 



P- 99) 

 Thompsonia, Z56 



thread-worms, Z4Z, Z43,z53,z64 



three methods of securing food avail- 

 able for sea animals, 67 



titanotheres, zz8 



toads, 45, 48, 50 



Tomoperis-\ik.c worms, loz 



tornaria, 150 



tortoises, 74, 119 



transparency of animals, 75, 76 



transportation through the air, 58 



trematodes, 151, Z4Z, Z73 



Triassic, 99 



trilobites, loi, 107, 108, iiz, 115, 190 



Trinil man, zz6, ZZ7 



trocho sphere, 150 



Tunicata, z6i, z68, Z75 



tunicates, 71, 103, 15Z, 153, 155, 159, 

 i6z, 196, 199, zoo, Z57, Z58 



turbellarians, i6z, Z4Z, Z43, Z53, Z55, 

 Z58, Z64, Z73, Z74 



turtles, IZ, 48, 50, 74, 75, 89, 116, 167, 

 178, i8z 



[^95] 



