1070 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
1820.—Rafinesque, C.S. Sur le genre Manis et description d’une nouvelle espéce, M. ceonyx. < Ann. 
Gén. Sci. Phys. vii, 1820, pp. 214, 215. 
1823.—Mitchill,S. L. Observations on the teeth of the Megatherium recently discovered in the 
United States. < Ann. Lye. Nat. Hist. New York, i, 1523, pp. 58-61, pl. 6, fig. 1. 
1824.—Cooper, W. On theremains of the Megatherium recently discovered in Georgia. < Ann. Lye. 
Nat. Hist. New York, i, 1824, pp. 114-124, pl. 8. 
1825.—Harlan, R. Description of a new genus of mammiferous quadrupeds of the order Edentata 
(Chlamyphorus truncatus). < Ann. Lye. New York, i, 1625, pp. 235-246, pll. 19-21; Zool. Journ. 
ii, 1826, pp. 154-163; Aun. Sci. Nat. v, 1825, pp. 5-21; Froriep, Notizen, x, 1825, col, 225-230. 
1827.—Cooper, W. Further discovery of fossil bones in Georgia, and remarks on their identity with 
those of the Megatherium of Paraguay. < Ann. Lye. Nat. Hist. New York, ii, 1827, pp. 267-270. 
1828.—Wagner, R. Ueber die Thiere der Héhleu in America und die Megalonyx-Knochen der Miin- 
chener Sammlung. < Kastner, Archiv Naturl. xv, 1828, pp. 31-85. 
1830.—[ Waterton, C.] The sloth. < Cab. Nat. Hist. i, 1830, pp. 56-58. 
(Waterton, C.] Ants and ant-bears of South America. < Cab. Nat. Hist. i, 1930, pp. 83, 84. 
1831.—Harlan, R. Description of the fossil bones of the Megalonyx [M. laqueatus] discovered in 
“White Cave”, Kentucky. < Journ, Acad. Nat. Sci. Phila. vi, 1831, pp. 269-288, pll. 12-14. 
Owen, R. [On the anatomy of the 9-banded armadillo (Dasypus peba, Desm.).] < Proc. 
Comm. Zool, Soc. London, i, 1831, pp. 141-144. 
Owen, R. [On the anatomy of the weasel-headed armadillo (Dasypus sexcinctus, Linn.).] 
< Proc. Comm. Zool. Soe. London, i, 1831, pp. 154-157 
1832.—Owen, R. [On the anatomy of two species of armadillo (Dasypus, L.).] < Proc. Comm. Zool. 
Soc. London, ii, 1832, pp. 130-132. 
Owen, R. [On the osteology of the weasel-headed armadillo (Dasypus 6-cinctus, L.).] < Proce. 
Comm. Zool. Soe. London, ii, 1832, pp. 134-138. 
1833.—Cooper, W. A report on some fossil bones’ of the Megalonyx, from Virginia; with a notice of 
such parts of the skeleton of this animal ag have been hitherto discovered, Sil remarks on the 
affinities which they indicate. < Ann. Lyc. Nat. Hist. New York, iii, 1833, pp. 166-173. 
1834.—Harlan, R. On the structure of the teeth in the “ Edentata”, fossil and recent. < Trans. Geol. 
Soc. Penna. i, 1834, pp. 40-45. ’ 
1835.—Harlan, R. Notice of the os ilium of the Megalonyx Jaqueatus from Big Bone Cave, White 
County, Tennessee. < ‘Trans. Geol. Soc. Pennsylvania, i, 1835, p. 347, pl. 21. ‘ 
1841.—Harlan, R. [Description of the bones of a fossil animal of the order Edentata—abstract.] 
< Proc. Am. Philos. Soc. Phila. ii, 1841, pp. 109-111. 
1842.—Owen, R. Description of the skeleton of an extinct gigantic sloth (Mylodon robustus, Owen); 
with observations on the osteology, natural affinities, and probable habits of the megatherioid 
quadrupeds in general. By Richard Owen, F. R.S., Hunterian professor and conservator of 
the Museum of the Royal College of Surgeonsin London. Published by direction of the council. 
London: ... . sold by John Van Voorst,.... 1842. 4°. 176 pp., 24 pll. with 24 expl. 11. 
Perkins, H.C. Notes to the editors respecting fossil bones from Oregon. < Bost. Journ. Nat.. 
Hist. iv, no. 1, Jan. 1842, art. xi, pp. 134-136. 
[Referred to Oryeterotherium oregonensis, Harlan.] 
Perkins, H.C. [On some fossil bones of Orycterotherium, supposed to be those of a megatherioid 
animal.] < Proce. Bost. Soc. Nat. Hist. i, 1842, pp. 56, 57, 62. 
1843.—Lund, P. W. Conspectus Dasypodum.—Fortegnelse paa bwltedyrene fra Rio das Velhas Flod- 
dal. < Oversigt K. Danske Vid. Selsk. Forh. (Copenhagen), 1843, pp. 79-83. 
Owen, R. Description dune squelette dun paresseux gigantesque fossile (le Mylodon robustus). 
suivie Vobservations sur les quadrupédes mégathérioides en général. < Ann. Sci. Nat. xix 
(Zool.), 1843, pp. 221-263; Froriep, Notizen, xxii, 1843, col. 65-72, 81-88, 97-104, 113-119; xxviii, 
1843, col. 4-10. 
Owen, R. Zoological summary of the extinet and living animals of the order Kdentata, 
< Edinb. New Philos. Journ. xxxy, 1843, pp. 353-361. 
1846.—Alessandrini, A. Structura integumentorum armadili, Dasypus novemeinctus, L. < Nov. 
Comm. Acad. Bonon. ix, 1849, pp. 393-410, 2 pll.; (Estr. ) Aiton: Ann. delle Sei. Nat. pele 
2a ser. vi, 1846, pp. 428-431. 
