INDEX. 



229 



Serpent-star, 73 

 Sertularia, 22, 29 

 Shrimp (fairy), 169 

 Silenia, 109 

 Siphonophora, 22, 35 

 Sminthurus, 151 

 Solemya, 124 

 Solpugida, 149 

 Sow-bug, 168 

 Spatangoidea, 66 

 Sphaeractinomyxon, 3 

 Sphserella, 2 

 Spider, 175 

 Spirorbis, 84, 96 

 Spirostomum, 4, 13 

 Spirula, 111 

 Spongilla, 17, 21 

 Sporozoa, 2, 11 

 Squid, 137 

 Squilla, 149, 165 

 Staining, 205 

 Starfish, 67 

 Stauromedusae, 23 

 Stentor, 4 

 Stomatopoda, 149 

 Streptoneura, 110 

 Strongylocentrotus, 66, 74, 75 

 Stylaster, 35 

 Stylochus, 45 

 Stylonychia, 4, 15 

 Suberites, 17 

 Suctoria, 16 

 Sycotypus, 128 

 Symphyla, 150 

 Synaptula, 67 

 Synccelidium, 45, 47 

 Syzygies, 11 



TABANUS, 151 

 Tsenia, 45 



Talorchestia, 149, 167 

 Telosporidia, 3 

 Terebratulina, 62, 64 



Termes, 151 

 Terobranchia, 190 

 Tessera, 23 

 Tetrabranchiata, 111 

 Tetrastemma, 46, 55 

 Tetraxonida, 17 

 Thaliacea, 191 

 Thalassicolla, 1 

 Thousand-legs, 179 

 Thyone, 67, 80 

 Thysanura, 151 

 Trachelomonas, 8 

 Trachydermon, 110 

 TrachylinsB, 22 

 Trematoda, 45, 50 

 Trichina, 57, 58 

 Trichomonas, 2 

 Tricladida, 45 

 Tritia, 128 

 Trochelminthes, 60 

 Trypanosomes, 2 

 Tubifex, 84 

 Tubipora, 23 

 Tubularia, 22, 28 

 Tunicate, 193 

 Turbellaria, 45, 46 



UNIO, 109, 111 



Urochorda (Enteropenusta), 190, 192 



VENUS, 109, 111 

 Vertebrata, 191 

 Vespa, 152 

 Volvox, 2, 9 

 Vorticella, 4, 14 



WASHING, 205 

 Water-flea, 170 



YOLDIA, 109, 111, 119 



ZOANTHARIA, 23 

 Zoothamnium, 4 



