FROM THE PHOSPHATE BEDS OF SOUTH CAROLINA. 253 



of the Academy, a long time ago described by me under the above name, two are 

 selected and represented in figures 31, 32, Plate xxxiv. The teeth are straight, 

 and have both borders alike and subacute. 



The larger tooth is an inch and a half long and half an inch broad; the smaller 

 tooth is 11 lines long and 5 lines broad. 



Carcharodon megalodon. 

 Multitudes of teeth referable to this species are obtained from the phosphate 

 beds of South Carolina. Among them are some which exceed in size those which 

 have been reported from other localities. The following notes of measurements 

 were taken from some of the largest specimens observed: — 



1. A tooth, contained in a show-case of the Bradley Fertilizer Co. in the Agri- 

 cultural Hall of the International Exhibition, from the phosphate beds of the 

 Company on the Stono River, measures 6 inches 8 lines in length from the level 

 of the ends of the fangs to the end of the tooth, and is 4 inches 8 lines in width 

 across the base. 



2. A second specimen, in the same collection from the same locality, is 6 inches 

 in length, and 5 inches 1 line in breadth. 



3. A specimen, from the Ashley Eiver, formerly in the possession of Professor 

 Holmes, measures 6 inches 5 lines long, 5 inches 5 lines broad, and weighs 2 lbs. 

 3 drs., apothecaries' weight. 



4. A second specimen, from the same locality, has the same length, and is 4 

 inches 10 lines in breadth. 



5. Two additional specimens, from Ashley River, measure 5 inches 10 and 11 

 lines in length, and 4 inches 6 and 7 lines in breadth. 



6. A specimen, from a railroad cutting 27 miles from Charleston, purporting 

 to be derived from the eocene marl, is 5 inches 8 lines long, and 4 inches 5 lines 

 broad. 



Besides the foregoing, among the multitude of teeth of Sharks, observed in the 

 various collections of fossils from the South Carolina phosphate beds at the Inter- 

 national Exhibition, I noted particularly those of the following species : — 



Caroharodon angustidens. Abundant. 



In the collection of the Bradley Fertilizer Co., in Agricultural Hall, there is a 

 specimen of a large tooth of this species, imbedded in a hard phosphatic nodule 

 about the size of two fists. The projecting crown is about 2| inches in length, 

 Avith the base about 2 inches in width. The specimen was derived from the 

 Bulow tract between Asliley and Stono Rivers. 



60 



