INDEX, xli 
Orver Il.—HYDROSTATICA, 427 
Physalia, 428 
Physsophora, 428 
Physsophora proper, 428 
Hippopus, 429 
Cupulita, 429 
Racemida, 429 
Rhizophyza, 429 
Stephanomia, 429 
Diphyes, 429 
Diphyes proper, 430 
Calpes, 430 
Abyles, 430 
Cuboides, 430 
Navicula, 430 
CLASS IV.—POLYPI. 
Orver I.—CARNOSI, 431 
Actinia, 431 
Actinia proper, 431 
Thalassiantha, 432 
Discosoma, 432 
Zoanthus, 432 
Lucernaria, 433 
Orver II].—GELATINOSI, 433 
Hydra, 433 
Corine, 434 
Cristatella, 434 
Vorticella, 434 
Pedicellaria, 435 
Orver II].—CORALLIFERI, 435 
Fam 1.—Tusutaril, 436 
Tubipora, 436 
Tubularia, 436 
Tubularia marina, 436 
Tibiana, 437 
Cornularia, 437 
Anguinaria, 437 
Campanularia, 437 
Clytia, 437 
Laomedea, 437 
Sertularia, 437 
Aglaophenia, 437 
Amatia, 438 
Antennularia, 438 
Sertularia proper, 43 
