182 



PROCEEDINGS OF THE ACADEMY OF 



[1890. 



May 6. 

 Dr. D. G. Brinton in the chair. 

 Twenty-nine persons present. 



A paper entitled " New Myxomycetes in Century xxv of Ellis 

 and Everhart's North ximerican Fungi." By Geo. A. Kex. 

 The death of George S. Pepper, a member, was announced. 



May 13. 

 Mr. Charles Morris in the chair. 

 Twenty-eiglit persons present. 



May 20. 



The President, Dr. Joseph Leidy, in the chair. 

 Thirty-two persons present. 



Hippotheriuvi and Rhinoceros from Florida. — Prof. Leidy re- 

 marked that with other fossils, which had been the subject of former 

 communications, collected by Joseph Willcox and Wm. M. INIeigs at 

 the phosphate bed of T. S. Morehead in Peace Creek, Florida, there 

 were a number of Horse teeth. These were regarded as having 

 pertained to the extinct indigenous species Equus major and E. 

 fraterniis. Among them was one, which from its general resem- 

 blance was included with the former, but since has been noticed by 

 the quickly observant eye of Prof Cope to belong to a Hippotheriimi. 

 The size of the tooth indicates the species to have been as large as 

 the ordinary domestic Horse and therefore the largest species of the 

 genus yet discovered. The specimen also represents the third species 

 found in Florida ; the others being the H. ingenuum and If.plicatile 

 (Proc. 1885, 33 ; 1887, 310). The tooth, a second or third upper 

 molar, is three inches long in its outer curvature and the worn trit- 

 urating surface, represented in the accom- 

 panying wood-cut, measures 15 lines fore and 

 aft and 14 lines transversely. The arrange- 

 ment of the enamel most nearly approximates 

 the condition observed in H. occidentale 

 from our western tertiary formation. The i 

 inner column, of uniform breadth the entire 

 length ofthe crown, measures half an inch fore 

 and aft, and in section is horizontally reni- 

 form. The species was a third larger than 

 the H. (jracile, the largest European form. Hiiipotiunum rnnceps. 

 From its size it may be distinguished with the name of Hippothe- 



RIUM PRINCEPS. 



