PLATE XL 



[Proc. Wash. Acad. Sci., Vol. Ill, PI. XXII.] 



Fig. I. Halecium speciosutn Nutting. Part of colony, showing hydrophores 

 and gonangia (enlarged). 



2. Single hjdranth (greatly enlarged). 



3. Halecium ornatum Nutting. Part of colony, showing hydrophores 

 (enlarged). 



4. Single immature gonangium (enlarged). 



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