PLATES IN VOL. XIX. 



Plate L") 

 II. I 

 III, )>Structure of Staurouema. 



IV. I 



r f N ew Genera and Species of Araneidea. 



VI. 



VII. 



VIII. Structure of Hj^dractinia, Parkeria, and Stromatopora 



IX. Eurete farreopsis ; Myliusia Grayi. 



X.I 



-jT^T r New Poljzoa from Iceland and Labrador. 



XII. New Hydroida. 



XIII. BdeUoidiua aggregata — New species of Carpenteria. 



XIV. New Sponges. 



XV. Ophiopteris antipodum. 



XVI. New Reptiles from Madagascar. 



XVII. Structure of the Coccosphere. 



XVIII. Broeckia bruxellensis. 



XIX. New Genus and Species of Paleeozoic Fossils. 



XX. Rupertia stabilis. 



