Vol. XV, pp. 205-206 October 10, 1902 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



AN ADDITION TO THE CORAL FAUNA OF THE AQUIA 

 EOCENE FORMATION OF MARYLAND. 



BY T. WAYLAND VAUGHAN. 



Since my report on the Eocene corals of Virginia and Mary- 

 land, published by the Maryland Geological Survey*, was writ- 

 ten, Mr. Chas. Schuchert and Mr- R. S. Bassler have collected 

 some interesting specimens at upper Marlboro, Maryland, mak- 

 ing one important addition to the fauna. The additional species 

 for this locality, collected by these gentlemen are Paracyatfuis 

 inarylandicus Vaughan (collected by Mr. Schuchert), originally 

 described from Piscataway, Maryland, and Hawiesiastrcea con- 

 /er^a Vaughan (collected by Mr. Bassler), the types coming from 

 Gregg's Landing, Alabama. The first species has no especial 

 geologic significance, although it is interesting to be able to 

 note it from another locality. The second species is represented 

 by a single small and imperfectly developed specimen, but pos- 

 sesses much importance, as it had hitherto been found only in 

 Alabama, where it ranges in the Eocene from the Midway to ' 

 the Wood's Bluff, its best development being in the Gregg's or 

 Bell's Landing horizon. The occurence of this species is ad- 

 ditional evidence for correlating the Aquia formation with the 

 Gregg's Landing horizon, but what is much more important, it is 



*Eocene, 1901, pp. 222-232, pi. LXI, figs. 3-15. 



41— BIOL. SOC. WASH. VOL. XV, 1902. (205) 



