[37] Flower and Lydekker, "Introduction to the Study of Mammals," p. 183.
[38] E. Lönnberg, "On some Remains of 'Neomylodon listai," Ameghino, brought home by the Swedish Expedition to Tierra del Fuego, 1895-1897, Wissensch. Ergebn. schwedisch. Exped. Magellansländ, unter Leitung v. Otto Nordenskjöld, vol. ii. pp. 149-170, pls. xii.-xiv. (1899).
[39] "On some Remains of Grypotherium (Neomylodon) listai and associated Mammals from a Cavern near Consuelo Cove, Last Hope Inlet, Patagonia." Proc. Zool. Soc., 1900, pp. 64-79, pls. v.-ix.
[40] R. Hauthal, S. Roth, and R. Lehmann-Nitsche, "El Mamifero Misterioso de la Patagonia, Grypotherium domesticum," Revista Mus. La Plata, vol. ix. pp. 409-474, pls. i.-v. (1899).—F. P. Moreno, "Note on the Discovery of Miolania and of Glossotherium (Neomylodon) in Patagonia," Geol. Mag. [4] vol. vi. pp. 385-388 (1899).
[41] J. Reinhardt, "Beskrivelse af Hovedskallen af et Kæmpedovendyr, Grypotherium darwinii, fra La Plata-Landenes plejstocene-Dannelser," K. Dansk. Vidensk. Selsk Skr. [5] vol. xii. (1879), pp. 353-380, pls. i. ii.—H. Burmeister, "Atlas de la Description physique de la République Argentine," sect. ii. (1881), p. 119, woodc. (Mylodon darwinii),—R. Lydekker, "The Extinct Edentates of Argentina," Anales Mus. La Plata—Paleont. Argentina, vol. iii. pt. 2 (1894), p. 85, pl. liv.
[42] R. Hauthal, op. cit. p. 4.
[43] See S. Roth, op. cit. pl. ii. Fig. 1.
[44] R. Lydekker, Anales Mus. La Plata—Paleont. Argentina, vol. iii. pt. 2 (1894), p. 73, pl. xlv. Fig. 1.
[45] R. Owen, "Description of the Skeleton of an Extinct Gigantic Sloth, Mylodon robustus, Owen" (1842), p. 18.
[46] P. Gervais, "Mémoire sur les Formes Cérébrales propres aux Édentés vivants et fossiles," Nouv. Arch. Mus., vol. xv. (1869), p. 39, pl. iv. Figs. 1, 2.