72 BULLETIN OF THE 



These are represented in the different stations or localities as fol- 

 lows : — 



3357. Fathoms 782. Campanularia castellata. 



Cryptolaria conferta. 



Sertularia variabilis. 

 3368. Fathoms 66. Halecium gracile. 

 3384. Fathoms 458. Eudendrium, sp. 



Lafoea couvallaria. 



Lictorella geniculata. 



Halecium argenteum. 



Sertularia variabilis. 



Cryptolaria pulchella. 



Plumularia helleri. 

 3388. Fathoms 1168. Sertularia variabilis. 



Comparing this collection with tlie one made on the eastern side of 

 Central America in the Gulf of Mexico and the Gulf Stream by Mr. 

 Agassiz in 1877-78,^ it is noteworthy that two of the fine species before 

 known, Cryptolaria conferta and Lafoea couvallaria, occur also on the 

 eastern side of the isthmus. 



Two others of the five are known from elsewhere in the Pacific, — 

 Cryptolaria pulchella from off" Honolulu, and Halecium gracile from the 

 Australian coast. 



The remaining one of the five, Plumularia helleri, has been found at 

 Rovigno, Italy. 



Eudendrium, sp. 



Plate I. Figs. 1 and 3. 



Two or three M^ell worn specimens of a gymnoblastic form I refer to this 

 genus because of the structure of the oue hydrantli which remains. It is not 

 sufficient to make an absolute determination by, and I therefore attempt no 

 specific identification. 



Trophosome. The stem is polysiphouic, and the bases of the fjranches also ; 

 the brandies and bnincldets are ainiulated at the Ijase, and annulations occur 

 irregularly along the branches. 



A life-size figure of the colonies is represented on Plate I. Figs. 1, 2. 



Gnnnsome not known. 



Locality. Station 3384. About 100 miles south of the city of Panama, 

 Bathymetrical record, 458 fathoms. 



1 See tills BuIIethi, Vol. V. No. 10. 



