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PROCEEDINGS OF THE AMERICAN ACADEMY. 



branch. Found toward the base of the colony always below the first 

 type, whether occupying the same stem or not. A pedicel bearing this 

 type may support a hydranth upon which the other type occurs. 



Male Gonosome. Gonophores on an aborted hydranth and much 

 annulated pedicel (Figures 3, 5). Three- chambered in a moniliform 

 arrangement (Figure 3, left side) with but slight constriction between 

 the lobes and their relative diameter variable. Four lobes may be 



Figures 3-5. Eudendrium hargitti. 



Figure .3. Hydranth witli common type of male gonophore to the left and a 

 less common form to the right (X 26). 



Figure 4. Distal streptospadiceous and proximal orthospadieeous gonophores 

 (X 12). 



Figure 5. An unusual form of male gonophore (X 22). 



arranged so as to form a diamond- shaped cluster, or another may be 

 added proximally upon one side (Figure 3, right side). 



The variability and simplicity of these gonophores in comparison 

 with other Eudendria is suggestive of degeneration. This hydroid 

 has the distinction of being the only member of the genus whose egg 

 is known to grow by the absorption of other cells. 



It is a pleasure to name this species after Professor Charles W. 

 Hargitt. To those who, as students of the Hydromedusae, are ac- 

 quainted with his various contributions relating to problems of the 

 group, the reason for so doing is apparent. 



