INDEX, Xli 



Order II.— 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. 

 Order I.— CARNOSI, 431 



Actinia, 431 



Actinia proper, 431 



Thalassiantha, 432 



Discosoma, 432 



Zoanthus, 432 

 Lucernaria, 433 



Order II.— GELATINOSI. 433 



Hydra, 433 

 Corine, 434 

 Cristatella, 434 

 Vorticella, 434 

 Pedicellaria, 435 



Order III.— CORALLIFERI, 435 



Fam 1. — TuBULARii, 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, 438 



