Ellengassen:Unknown Sloth-like mammal of South America.


Tehuelche (Chon) word.

Variant names:

Lobo-toro (Spanish equivalent of Araucanian word meaning “wolf bull”), Lofo-toro.

Physical description:

The size of a bull. Long hair.


Roars or howls like a wolf. Herbivore. Makes its den in a cave.


Like a wooden shoe with two cleats across the sole, according to a lone report from 1898.


Patagonia, especially in Lago Buenos Aires area of Santa Cruz Province, Argentina; southern Mendoza Province, Argentina.

Present status:

Probably extinct.

Possible explanations:

(1) May represent a recently surviving Patagonian cave-dwelling sloth (Mylodon darwinii), subfossil remains of which are known from the Cueva del Milodón in southern Chile. Manuel Palacios told Bruce Chatwin there was a rock painting of a Mylodon in the Monumento Natural los Bosques Petrificados, Santa Cruz Province, Patagonia.

(2) Muddled Indian legends of Jaguars (Panthera onca) and feral oxen.


  • Francisco P. Moreno, Viaje á la Patagonia austral, emprendido bajo los auspicios del gobierno nacional, 1876–1877 (Buenos Aires: La Nación, 1879), p. 395;
  • Santiago Roth, “Descripción de los restos encontrados en la Caverna de Ultima Esperanza,” in “El mamífero misterioso de la Patagonia, II,” Revista del Museo de La Plata 9 (1899): 421–453;
  • H. Hesketh Prichard, Through the Heart of Patagonia (New York: D. Appleton, 1902);
  • Robert and Katharine Barrett, A Yankee in Patagonia: Edward Chace (Boston: Houghton Mifflin, 1931), p. 30;
  • Carlos Rusconi, “La supuesta existencia de Milodontes en la Patagonia Austral (Milodon listai),” Revista del Museo de Historia Natural de Mendoza 3 (1949): 252–264;
  • Bruce Chatwin, In Patagonia (New York: Summit, 1977), p. 72



Mysterious Creatures – A Guide to Cryptozoology written by George M. Eberhart – Copyright © 2002 by George M. Eberhart