Plate XXXIII. 



Fig. 124. Thuiaria fabricii. 



A. Natural size. 



B. Portion of branch showing hydrothecae. 



C. Gonophores. 



Fig. 125. Thuiaria robusta. 



A. Natural size. 



B. Portion of branch showing hydrothecae. 



C. Gonophores (After Nutting). 



Fig. 126. Thuiaria similis. 



A. Natural size. 



B. Portion of stem showing mode of branching. 



C. Portion of branch showing hydrothecae. 



D. Gonangium. 



Fig. 127. Thuiaria tenera. 



A. Natural size. 



B. Portion of branch showing hydrothecae and gonophore. 



