In the Academy’s collection at Philadelphia is a large hindermost molar, 180 mm. long and 96 mm. wide, which had been sent to the Academy in company with the type of _Gomphotherium rugosidens_. 2. _Ashley River, above Charleston, Charleston County._—In 1860 (Holmes’s Post-Pl. Foss. South Carolina, p. 109), Leidy stated that fragments of teeth and bones had been found in the Post-Pliocene deposits of Ashley River, apparently referable to _Mastodon ohioticus_ (_Mammut americanum_). In a footnote to this statement, F. S. Holmes says that since Leidy’s statement was written several perfect teeth have been discovered, and referred to plate XIX, figures 1, 2, 3. These figures illustrate the teeth which belonged to Dr. L. F. Klipstein, Christ Church. In the preface to Holmes’s work he refers to the teeth on this plate as being those associated with teeth of a horse, remains of a deer, and a piece of pottery. On page III of the introduction there is further explanation of the discovery. Exactly where the swamp which Klipstein was draining was situated seems not to have been stated, but the context appears to indicate that it was somewhere along Ashley River. In 1918 (Amer. Jour. Sci., ser. 3, vol. XLV, p. 438, fig. 2, not “fig. 3”) Professor Loomis described and figured 2 lower tusks, found in Nine Mile Bottom, 9 miles above Charleston, probably along Ashley River. On page 441 Loomis correctly described these, except that what he called enamel is only a dense outer layer of dentine. Evidently these tusks had been used for punching against hard objects. One may surmise that the animal had been accustomed to bark trees with them. Leidy (Proc. Acad. Nat. Sci. Phila., 1870, p. 98) states that he saw in the collection of C. N. Shepard, at Amherst College, remains of mastodons, etc., which had been found on Ashley River. In the collections at Charleston, both the private ones and that of the Charleston Museum, there are teeth of _Mammut americanum_, but records of exact localities are usually wanting.