146 



DEPARTMENT OF THE NAVAL SERVICE 



Eudendrium capillare Alder. 



Trophosome. Colony small, 12 mm., usually 

 branched, with the branches as strong- as the main 

 stem ; branches and pedicels annulated proximally. 



Gonosome. ^lale and female gonophores at the 

 base of aborted hydranths, on long, rather rigid pedi- 

 cels, rising from either the stem or stolon. 



Colour. Hydranths and male gonophores light 

 green; female gonophores reddish orange. 



No. 12. 

 Eudendrium capillare. 



Eudendrium cingulafum Stimpson. 



'' Polypidom small, very irregularly branched, somewhat as in E. rameum, but 

 not so thickly; branches strongly ringed, sometimes throughout their length, always 

 near their origin; polyi^e-s small with long tentacles and broad bhmt proboscis. It 

 differs from E. rameum in the moi'c numerous rings on the branches, and from E. 

 raraosum in the mode of branching." (Stimpson). 



Eudrndrium dispav Agassiz. 



Trophosome. Colony large, 10 cm., main stem 

 slightly fascicled; branches and pedicels extensively 

 annulated and the main stem wrinkled or annulated 

 to some extent ; branching irregular. 



Gonosome. Gonophores at the base of the hydranth 

 or scattered down the strongly annulated pedicel; 

 hydranth, although sometimes smaller, is often of 

 normal size. 



Colour. Stem greenish; hydranths rose-coloured; 

 male gonophores orange; female gonophores pink. 



No. 13, 

 Eudendrium dispar. 



Eudendrium rameum (Pallas) 



Trophosome. Stem large, fascicled, much and 

 irregularly branched, large branches fascicled ; stem 

 and main branches, smooth or but slightly wrinkled 

 or annulated; small branches annulated proximally; 

 pedicels annulated throughout. 



Gonosome. Gonophores borne at the base of 

 hydranths that are normal or not entirely aborted. 



Colour. Stem dark brown; hydranths reddish; 

 female gonophores yellow. 



No. 14, 

 Eudendrium rameum. 



