SYSTEMATIC INDEX. 
Polystoma 365 
Cyclocotyle 365 
Tristoma 365 
Hectocotyle 366 
Aspidogaster 366 
Planaria 367 
Prostoma 367 
Derostoma 368 
TENIOIDEA 368 
Tenia 368 
Tricuspidaria 369 
Bothryocephalus 370 
Dibothryorhynchus 370 
Floriceps 370 
Tetrarhynchus 371 
Tentacularia 371 
Cysticercus Ryall 
Ccenurus 372 
Scolex 372 
CESTOIDEA 373 
Ligula 373 
ACALEPHA 374 
SIMPLICIA 374 
Medusa 374 
Medusa proper 375 
/Equorea 375 
Phorcynia 375 
Foveolia 376 
Pelagia 376 
Cyanea 376 
Rhyzostoma 377 
Cephea 378 
Cassiopea 378 
Astoma 378 
Berenix 379 
Endora 379 
Carybdea 379 
Beroe 379 
Idya 380 
Doliolum 380 
Callianira 380 
Janira 380 
Alcynoe 380 
Ocyroe 381 
Cestum 381 
Porpita 381 
Velella 382 
HYDROSTATICA 383 
Physalia 383 
Physsopora 384 
= Physsopora proper 384 
Hippopus 384 
Cupulita 385 
. Racemida 385 
Rhizophyza 385 
Stephanomia 385 
Diphyes 385 
Diphyes proper 386 
Calpes 
Abyles 
Cuboides 
Nayicula 
POLYPI 
CARNOSI 
Actinia 
Actinia proper 
Thalassiantha 
Discosoma 
Zoanthus 
Lucernaria 
GELATINOSI 
Hydra 
Corine 
Cristatella 
Vorticella 
Pedicellaria 
CORALLIFERI 
TUBULARII 
Tubipora 
Tubularia 
Tubularia marina 
Tibiana 
Cornularia 
Anguinaria 
Campanularia 
Clytia 
Laomedea 
Sertularia 
Aglaophenia 
Amatia 
Antennularia 
_ Sertularia proper 
CELLULARII 
Cellularia 
Crisia 
Acamarchis 
Loricula w 
Eucratea 
Electra 
Salicorniara 
Flustra 
Cellepora 
Tubulipora 
Corallina : 
Corallina proper 
Amphiroea 
Jania 
Cymopolia 
Penicilla 
Halymedes 
Flabellaria 
Galaxaura 
Liagora 
Anadiomene 
Acetabulum 
Polyphysa 
CORTICATI 
