PLATE IX. 



FIG. 



1. CORYNE VAN-BENEDENII, p. 45, nat. size. 



la and Ib. Polypites, magnified. 1 c. A gonophore, highly 

 magnified to show the structure and the contained 

 embryo. 1 d. A polypite with goiiophores, magni- 

 fied. 



2. SYNCORYNE EXIMIA, p. 50, nat. size. 



2 a, 2 b, 2 c. Polypites, magnified. 2 d. A portion of a stem 



and branch. 2 e. A gonophore, magnified. 2/. 

 Annulated space at the base of the stem. 



3. ZANCLEA IMPLEXA, p. 59, nat. size. 



3 , A polypite, magnified. 3 b. A portion of the stem, 



magnified to show the structure of the polypary. 

 3 c. The gonozooid. After Alder. 3 d. One of the 

 tentacles of Zanclea costata. After Gegenbaur. 



