22 TRANSACTIONS OF THE WAGNER FREE 



The remaining tooth, the most characteristic of the specimens, is an 

 upper molar, probably the fourth of the right series, represented in fig. lo, 

 plate V. It is but little worn; just sufficiently to expose the 

 course of the enamel folding on the surface of the tritu- 

 rating surface, represented in the adjoining woodcut. It is 

 well preserved and retains completely its exterior cemen- 

 tum. It is a little larger than the tooth attributed to H. 

 ingcHiiiim, but its inner enamel column is nearly double the 

 . moil t'/uma. ^^^^ ^^^^ ^^^ diameter. The measurements of the tooth 



compared with those of corresponding teeth regarded as characteristic of 

 the species H. ingemnim and H. plicatile are as follows : 



H. montezuma. H. iiigeiiuum. H. plicatile. 



Fore and aft diameter externally, 20 mm. 19 mm. 20 mm. 



Tran.sverse diameter at middle, 17 " 16.5 " 22 " 



Fore and aft diameter of internal column, 8.2 " 5.5 " 7 " 



4. An upper true molar tooth and a first phalanx of an Ox according in 

 size with those of Bison americamts. 



5. Fragments of antlers, bones, and teeth of Deer, not differing from the 

 corresponding parts of Cervus virginianns. 



6. Remains of the American PZlephant. Incidentally Mr. Willcox tells 

 us that in his visits to Florida he had received information of the occurrence 

 of teeth of the Elephant in different parts of the State. 



A nearly entire specimen, a last upper molar tooth of huge size, repre- 

 sented in plate VII., from Peace Creek, was presented to Mr. Willcox by the 

 finder, Mr. T. M. Rickards, of Candler, Marion County, Florida. In its 

 present condition it weighs 24^ pounds, and it now measures about 13 

 inches long and 1 1 inches in breadth fore and aft. It has about twen- 

 ty-three con.stituent plates ; the exact number being somewhat obscured 

 from the posterior extremity of the tooth being doubled on itself, a deformity 

 which is not uncommon in the existing Elephant, due to a want of sufficient 

 room in the jaw for the perfect development of the tooth. The worn tritu- 

 rating surface, 8 inches fore and aft and lyi inches transversely, displays 

 ten of the usual characteristic ellipses, according with so many plates or 

 lobes of the tooth. 



In a Monograph of the British Fossil Elephants, the author, Mr. A. L. 

 Adams, records many specimens of the last upper molar of the Elephas 

 primigenhis. In the dwarf variety of this to the largest form, the tooth 

 ranges from 6^ inches in fore and aft extent to twice that dimension, and 

 with from eighteen to twenty-seven ridges, or constituent plates, which, 

 however, hold no proportion with the size of the tooth. In the large.st 

 molars, from 10)^ to it,}4 inches in breadth, eight plates occupied a space 



