VOL. XV, PP. 207-209 OCTOBER 10, 1902 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A REDESCRIPTION OF THE CORAL PL A TYTR CHUS 

 8PECIOSUS* 



BY T. WAYLAND VAUGHAN. 



I was obliged, because of the imperfection of the original 

 description and the inadequacy of the figures, to place Platy- 

 trochus speciosus Gabb and Horn in the category of < 'Doubtful 

 Species" in my memoir on the Eocene and Lower Oligocene 

 Coral Faunas of the United States, f Through the kindness of 

 Professor L. C. Glenn, of Vanderbilt University, who has re 

 cently sent me the types, I am now able to present a new de 

 scription of the species and to give figures, from drawings by 

 Dr. J. C. McConnell. 



Trochocyathus speciosus (Gabb and Horn). 

 Figs. 1, la, 15, 2, 2a. 



1860. Platytrochus speciosus, Gabb and Horn, Journ. Acad. 

 Nat. Sci. Phila., 2nd ser., Vol. IV, p. 399, pi. LXIX. 

 Figs. 15, 16, 17 



1900. Platytrochus speciosus, Vaughan, U. S. Geological Sur 

 vey, Mon. XXXIX, p. 196. 



^Published here by permission of the Director of the U. S. Geological 

 Survey. 

 fU. S. Geological Survey, Mon. XXXIX, 1900. 



42 BIOL. Soc. WASH. VOL. XV, 1902. (207) 



