532 



SYSTEMATIC INDEX. 



Ascaris, 

 Strongylus, 

 Lernea, 



Echinorhynchus, 

 Fasciola, 

 Tape worm, 

 Hydatids, 

 Ligula, 

 Sea-Nettles, 

 Medusa, 

 Porpita, 

 Velella, 

 Physalia, 

 Diphyes, 

 POLYPI, 

 Actinia, 

 Lucernaria, 

 Hydra, 

 Vorticella, 

 Tubipora, 

 Tubularia, 

 Sertularia, 

 Cellularia, 



505 Flustra, 



506 Cellepora, 



506 Tubulipora, 



507 Corallina, 



508 Acetabulum, 



508 Black coral, 



509 Gorgonia, 



509 Isis, 



510 Madrepores, 



510 Millepora, 



511 Pennatula, 



511 Alcyonium, 



512 Sponges, 



512 INFUSORIA, 



513 Furcularia, 



514 Tubicolaria, 

 514 Brachionus, 



514 Cercaria f 



515 Vibrio, 



516 Proteus, 

 516 Monas, 

 516 Volvox, 

 516 



516 

 517 

 517 

 517 



518 

 518 

 518 

 518 

 518 

 519 

 519 

 520 

 520 

 523 

 521 

 521 

 521 

 522 

 522 

 522 

 523 

 523 



