XIV 



SYSTEMATIC INDEX. 



Spirlfer 433 



Thecidea 434 



Orbicula 434 



Discina 434 



Crania 434 



CIRRHOPODA 435 



Anatifa 436 



Pollicipes 437 



Cineras 437 



Otion 437 



Tetralasmis 437 



Balanus 437 

 Balanus proper 438 



Acasta 438 



Conia 438 



Asema 438 



Pyrgoma , 438 



Octhosia 438 



Creusia 438 



Coronula 439 



Tublcinella 439 



Diadema 439 



ARTICULATA 442 



ANNULATA 446 



TUBICOLA 448 



Serpula 448 



Spirorbis 449 



Sabella 450 



Terebella 451 



Amphilrite 452 



Syphostoma 453 



Dcntalium 453 



DORSIBRANCHIATA 454 



Arenicola 454 



Amphinome 455 



Chloeia 455 



Pleione 455 



Euphrosine 455 



Hipponoe 455 



Eunice 456 



Lysidice 456 



Aglaura 456 



"Nereis 457 



Phyllodoce 457 



Alciopa 458 



Spio 458 



Syllis 458 



Glycei-a 458 



Nephthys 459 



Lumbrinera 459 



Aricia 459 



Hesione 459 



Ophelina 460 



Cirrhatulus 460 



Palmyra 460 



Aphrodita 460 



Halithea 461 



