160 



EUDENDRIUM EAMOSUM. 



Eudendrimn tenue A. Agass. 



This species (Fig. 250) can at 

 once be distinguished from the 

 E. dis2Jar Agass. (Fig. 249) by 

 its large clusters of Medusge, 

 while in the E. dispar the Me- 

 dusae buds are always somewhat 

 scattered, and never clustered to- 

 gether, as in E. tenue. This is 

 quite a small species, the tallest 

 specimens hardly rising more than 

 an inch to an inch and a half, 

 while the E. disjoar is a large 

 Hydroid, growing in tall stems, 

 branching but little; the E. tenue, 

 on the contrary, forms small colo- 

 nies of densely crowded individ- 

 uals, branching profusely. The color is light pinkish. 



Massachusetts Bay, Nahant (A. Agassiz) ; Buzzard's Bay, Naushon 

 (A. Agassiz). 



Cat. No. 39, Naushon, Sept. 1861, A. Agassiz. Hydrarium. 



Cat. No. 40, Suisconset, July, 1849, L. Agassiz. Hydrarium. 



Cat. No. 41, Suisconset, July, 1849, L. Agassiz. Hydrarium. 



Cat. No. 402, Nahant, June 17, 1862, A Agassiz. Hydromedusarium. 



Eudendrium ramosmn McCr. 



Eudendrium ramosum McCr. Gymn. Charleston Harbor, p. 64. 

 ? Eudendrium ramosum Johnst. Brit. Zooph., p. 46. 



McCrady has identified this species with the English E. ramosum 

 Johnst. Specimens collected at Charleston by Professor Clark cer- 

 tainly show a great similarity to the Enghsh species, but it still 

 remains to be proved, as we do not know their development, that 

 these species are identical. 



Charleston, S. C. (McCrady). 



Cat. No. 42 Charleston, S. C, December, 1861, H. J. Clark. 



Fig. 250. A part of a male colony ; magnified. 



