72 BULLETIN OF THE 



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

 lows : — 



3357. Fatlioms 782. Campanularia castellata. 



Cryptolaria conferta. 



Sertularia variabilis. 

 8368. Fathoms 06. Halecium gracile. 

 3384. Fathoms 458. Eudeudrium, sp. 



Lafoea convallaria. 



Lictorella geniculata. 



Halecium argenteum. 



Sertularia variabilis. 



Cryptolaria pulchella. 



Plumularia helleri. 

 3388. Fathoms 1168. Sertularia variabilis. 



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

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

 Afassiz in 1877-78,^ it is noteworthy that two of the fine species hefore 

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

 eastern side of the isthmus. 



Two others of the live 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 

 Kovigno, Italy. 



Eudendrium, sp. 



Plate I. Figs. 1 and 2. 



Two or three well worn specimens of a gymnoblastic form I refer to this 

 genus because of the structure of the one hydranth whicli remains. It is not 

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

 specific identification. 



Troj^hosome. The stem is polysipbonic, and the bases of the branches also ; 

 the branches and branchlets are annulated at the base, and annulations occur 

 irregularly along the branches. 



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



Gonosome not known. 



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

 Bathymetrical record, 458 fathoms. 



1 See this Bulletin, Vol. V. No. 10. 



