Contents xxix 



PAGE 



Class Pelecypoda 

 Spawning and Fertilization of the Oyster, Ostrea virginica . -537 

 By Paul S. Galtsoff, U. S. Bureau of Fisheries 



The Cultivation of Lamellibranch Larvae 539 



By Herbert F. Prytherch, U. S. Bureau of Fisheries 



Cumingia tellinoides 543 



By Benjamin H. Grave, De Pauw University 



Rearing Teredo navalis 545 



By Benjamin H. Grave, De Pauw University 



Phylum XVI. Echinodermata 

 Class Aster oidea 



Asterias forbesi 547 



By Henry J. Fry, Cornell University Medical College 



The Laboratory Culture of the Larvae of Asterias jorbesi . . . 550 

 By Evert J. Larsen, U. S. Bureau of Fisheries 



Class Ophiuroidea 



Ophioderma brevispina 553 



By Caswell Grave, Washington University 



Class Echinoidea 



Arbacia punctulata 554 



By Henry J. Fry, Cornell University Medical College 



Notes on the Culture of Strongylocentrotus jranciscanus 



and Echinarachnius excentricus 55& 



By Martin W. Johnson, Scripps Institution of Oceanography 



Class Holothurioidea 



Notes on the Culture of Cucumaria 559 



By Martin W. Johnson, Scripps Institution of Oceanography 



Phylum XVII. Chordata 

 Class Ascidiacea 

 Notes on the Culture of Eight Species of Ascidians . . . . 560 

 By Caswell Grave, Washington University 



Culture Methods for Ascidians 5°4 



By N. J. Berrhl, McGill University 



