PLATES IN VOL. XIX. 

 Plate L"| 



II. I 



IIL ^Structure of Staurouema. 



IV. I 



iV.J 



VL| 



Yp^ f New Genera and Species of Araneidea. 



VIIL Structure of Plydractiuia, Parkeria, and Stromatopora. 

 IX. Eurete farreopsis ; Myliusia Grayi. 



■^j' f New Polyzoa from Iceland and Labrador. 



XU. New Hydroida. 



XIII. Bdelloidina aggregata — New species of Carpenteria. 



XIV. New Sponges. 



XV. Ophiopteris antipoduni. 



XVI. New Eeptiles from ]\Iadagascar. 



XVII. Structure of the Coccosphere. 



XVIII. Broeckia bruxellensis. 



XIX. New Genus and Species of Paloeozoic Fossils. 



XX. Rupertia Ptabilis. 



