CHARLES F. LYTLE 



319 



Fig. 2. Macrophotograph of a polyp colony with three hydranths. The 

 neck and capitulum of the lower hydranth are reflexed. Magnification ap- 

 proximately 40X. 



HYDRANTH 



FRUSTULE 



MEDUSA 



Fig. 3. Diagram illustrating the three types of buds produced by Cras- 

 pedacusta polyps. 



