280 



INVERTEBRA TE ZOOLOG Y 



Spirol)olus, 233, 234 



Spirochaets, 37, 55 



Spirorbis, 152, 157 



Spiroschaiidinnia, 38 



Spirostomum, 57 



Spirilla, 200, 201 



Spondylomorum, 33, 56 



SpongiUa, 87 



Spongillidae, 81 



Spongin, 86 



Spongioblasts, 86 



Spontaneous generation, 6 



Sporangia, 42 



Sporoblasts, 45, 47 



Sporocyst, 115 



Sporogony, 9, 26 



Sporonts, 26 



Sporoplasm, 48 



Sporosac, 92, 93 



Sporozoa, 29, 43, 57 



Sporozite, 43, 45 



Squid, 184, 200 



Squilla, 218, 223 



Starfishes, 165 



Statoblasts, 8, 161 



Statocyst (see otocyst), 63, 80, 89, 



94, 184, 189 

 Statolith, 63, 80 

 Stauromedusae, 102 

 Stemonitis, 57 

 Stenophora, 44, 57 

 Stenopora, 164 

 Stenostomum, 125 

 Stentor, 57 



Stephanoceros, 140, 143 

 Stephanonympha, 35, 56 

 Sternal sinus, 220 

 Sternum, 241 

 Stichostemma, 126 

 Sting, 227 



Stomatopoda, 218, 223 

 Stomodaeum, 70, 207 

 Stomolophus, 103 

 Stone canal, 172 

 zur Strassen, 130 

 Strepsiptera, 251 

 Streptoneurous, 194 

 Strigea, 126 

 Strigeata, 126 



Strobila, 95, 117 



Strombidiiun, 57 



Stroml)us, 196, 201 



Strongyloeentrotus, 177, 182 



Strongyloides, 136. 



Strophitus, 191 



Stychopus, 182 



Stylaster, 102 



Stylet, 123 



Stylochus, 125 



Stylonichia, 57 



Subcosta, 243 



Subcuticula, 128 



Suberites, 87 



Suckers, 112, 153 



Sucking discs, 198 



Suctoria, 29, 49, 53, 58 



Supporting tissue, 64 



Sutures, 203, 239 



Swimmerets, 219 



Sycon, 83 



Syllis, 151, 157 



Sympathetic nervous system, 78, 246 



Symphyla, 205, 232, 234 



Synapta, 182 



Synchaeta, 143 



Syngamus, 136 



Synura, 56 



Syphihs, 38 



Systema Naturae, 4 



T 



Tactile organs, 63, 78 

 Taenia, 121, 122, 126 

 Taeniolae, 95 

 Tarantulas, 228 

 Tardigrada, 205, 234 

 Tarsus, 241 

 Taste organs, 79 

 Tectibranchs, 196 

 Tegmina, 242 

 Telolilasts, 150 

 Telolecithal, 14 

 Telorchis, 126 

 Telosporidia, 43, 57 

 Telson, 216, 217 

 Tentacles, 88, 161, 163, 195 

 Tentorium, 239 



