Sea peach. 287 (143) 



Sea pens, 102, 103* (10) 



"Sea plumes," 70, 101 



'•Sea pork," 287 



Sea slugs, 177, 182 (61-69) 



Sea spiders, 252, 253* 



Sea squirts, 286*, 287, 288* 



(10) (142) 

 Sea stars. 189*, 254*, 276, 280* 



(118-125), (129). (130) 

 Sea urchins, 254*, 280, 281, 



282*. 284* (136-139) 

 "Sea walnuts." 115*. 117 

 Sea wasps, 76, 80 

 Sea whips, 65*. 97, 101, 102* 

 Seatworm, 138 

 "Sedentaria," 202 

 Segmented worms, 200 

 Sepia. 194 (75) 

 Serpent stars, 254*, 284 

 Serpiila. 204 (82) 

 .Serpulids, 204 (82) 

 Sertidaria. 69. 7 1 

 "Seven-year-itch," 251 

 Sexual reproduction, 20 

 Shipworm, 191, 195* 

 Shrimps. 236, (90), (91) 

 Sihogliniim, 148 

 Siliqua. 189, 192* 

 Siphon. 190 

 Siphonophores, 75 

 Sipunculoidea, 15, 156 

 Sipunciiliis. 156 

 Skeleton shrimp, 235, 238* 

 Slaters, 234 

 Sleeping sickness, African, 26, 



27* " 

 Slime molds, 18 

 "Slipper shell," 180 



Slugs, 158*, 182, 185*, 186* 



(^61-71) 

 Snails, 160 (49), (50). (55) 

 Snakelocks anemone. 106 (14) 

 Soft corals, 99*, 100*, 101* (9) 



(29) 

 Soil nematodes, 135 

 Solaster. 279 

 Solenogasters, 160 

 Solpugida, 247 

 Sorocelis, 123 

 Sow-bugs, 234, 236* 

 Spadelia. 145 

 Spaeriuin. 191 

 "Spat," 188 

 Spatangus, 284 

 Sperostoma. 280 

 Spheciospongia, 62 

 Spicules, 58, 59, 60 

 Spiders, 243 (108-114) 

 Spinulosa, 278 

 Spiny-headed worms, 142* 

 Spiny lobster, 237, 239* 

 Spiny sea stars, 278 

 Spirorbis. 204 

 Spirobrachia, 148 

 Spirographis ( 83 ) 

 Spirostominn, 18*, 53 

 Spirotrichs, 53 

 Spirilla. 194 

 Sponge fisheries, 66 

 Sponges. 15, 56* (I), (2), (3) 

 SpongiUa, 62* 

 Spongillidae, 64 

 Sporozoa, 32 

 Sporulation, 20 

 Squids, 194. 197 (72). (73) 

 Sqiiilla. 240 

 Stalked jellyfishes, 78 



Stalked medusas, 80 



Stalked tunicates. 144 



"Star coral," 1 10. 113* 



Starfishes: see Sea stars 



Statoblasts, 152 



Stauromedusas, 78 



Stenopiis (90) 



Stenostomata, 153 



Stentor. 18, 51. 53* 



Stichodacytyline anemones, 104 



Stichopiis. 215 



Stigma. 21 



Sting. 247 



"Stinging corals." 74, 113 



Stoichactis. 104 



Stoloniferans. 101 



Stomatopoda. 240 



Stomolophus. 97 



Stomphia. 106 



Stony corals, 104, 112* 



Strombus, 181 



Strongylocentrotiis. 280, 283 



(137) (138) 

 Styhitida. 103 

 Stylochiis. 124 

 Stylonychia. 54* 

 Siiberites (2) 

 Suberitidae, 64 

 Suctoria. 20. 54 

 "Sun animalcules," 31 

 Sun stars. 279* (127) 

 Surf-dwelling clam, 189 

 "Swimmers" itch," 119, 126 

 Sycon. 60* 

 Symmetry. 14 

 Synaptiila. 276 

 Syniira. 23 



Tachypleiis. 243 

 Taenia, 127* 

 Tagelus. 193* 

 Talorchestia, 235 

 Tapeworms. 119*, 126, 127* 

 Tarantulas (107) 

 Tardigrada, 226 



Tarentine fabric. 187 

 Tealia. 105, 107 (17) (20) 

 Tegiila, 182* 

 Tentacles. 160 

 Tentaculata. 1 16 

 Terebratulina, 1 55 

 Teredo, 191, 195* 



Tethy.'i. 182 

 Tediyiim, 287 (143) 

 TeliUa. 58, 62 

 Tetractinellida, 62 

 Tetrahyinena, 5 1 

 Tetra.stemma, 131 

 Thais (54) 



302 



