son ae 
60 Dr. J. Wyman on Fossil Bones from Memphis, Tenn. 
flattened and is divided by a prominent ridge, which forming: 
the base of the tuberosity in front, becomes gradually thicker. » ~. 
and stronger as it merges into the latter. Laterally near the point . 7” 
and at the base are numerous vascular channels and openings; ~ 
one orifice of much greater size than the rest, exists on each side’ 
just above the tuberosity, and from it several deeply im pressed 
channels extend towards ve cen of the bone. ‘The tuber- as 
osity projects from each s the bone, the upper surface of © 
this projection being Pedveted into a deep and narrow channel. be 
ngonsequence of the absence of a part of this bone, the pro- 
portional measurements of the whole cannot be given. ‘Its great- 
est height from the tuberosity vertically upwards is 3 inches, its 
greatest thickness is one inch; from the apex to the middle of its 
greatest vertical diameter 3°5 inches. 
aa 
. 
. 
. 
Bibliography of the genus Megalonyx :— 
Jefferson, President. Memoir on the discovery of certain quad- 
rupeds of the clawed kind, in the western parts of Virginia: Am. 
Philosoph. Trans., Ist series, vol. iv, 6. 
Wistar, Caspar, Dr. Description of the bones deposited by 
President — in the Museum of the ae With plates. 
hilos. Soc., Ist series, vol. iv, p. 5 
Cuvier. Ossemens. Fossiles. Tom. viii, Hs “30d Pl. 216. 
Fourth edition. 1836. 
Harlan, Richard. Medical and Phys. Researches, pp. 319, 
271, 331 
“« American Jour. Science, vol. xliii, p. 141; vol. xliv, p. 69; 
xlv, p. 209. 
¢ Journal Acad. Nat. Sciences, vol. vi, p. 269. This pa- 
per contains a description of numerous parts of the 
skeleton. 
Troo Remains of Megalonyx in Tennessee. Trans. 
Geolog. "bad Penn., vol. i, p. 144, . 
Owen, Richard. Memoir on the Mylodon. See his numerous 
of families, genera and species of this group. p. 168. 
«Letter to the editors on Dr. Harlan’s notice of new fossil 
ammalia, Am. Jour. Sci., vol. xliv, p. 341. 
“' Odontography, p. 333, pl. 80, fig. 
“Fossil co Nanmmaaea of the Beagle. Pt. I. pp. 63, 
Sails, ates a 
99. PL'x 
Dekay. Nat. Hist. N. Y. Pel Z oology of Mammalia, p. 99. 
Blainviile. Recherches sur l’ancienneté des Edentés terrestres 
au ocacad = la terre. Comptes Rendus, Jan. 
1839, pp. 39. 
“  Osteogra ie. ’ Fascic. Gravi 
Lund, Dr. Extrait d’une sities pia Lunde ecri itée a Lagoa 
Santa, (Brezil.) Comptes Rendus—Seance, Avril 15, 1839, p. 570. 
