EditorialBrown howler monkey, Alouatta guariba, eating a guaba fruit, Inga edulis. (Araguato, Mycetes ursinus.) Critically endangered. Handcoloured steel engraving by W.H. Lizars after an illustration by James Stewart from Sir William Jardine's Naturalist's Lib...
EditorialBrown howler monkey, Alouatta guariba, eating a guaba fruit, Inga edulis. (Araguato, Mycetes ursinus.) Critically endangered. Handcoloured steel engraving by W.H. Lizars after an illustration by James Stewart from Sir William Jardine's Naturalist's Lib...
EditorialMonkeys of the river Orinoco, Guiana, South America, by Humboldt. Three-striped night monkey, Aotus trivirgatus 1, red-backed saki, Pithecia chiropotes 2, black-headed uakari, Cacajao melanocephalus 3, and ursine howler monkey, Alouatta arctoidea 4. Ha...
EditorialHowler monkey, Alouatta species. Ouarine or preacher monkey. Handcoloured copperplate engraving by J. Pass after an illustration by Johann Jakob Ihle from Ebenezer Sibly's Universal System of Natural History, London, 1796.
EditorialBlack howler, Alouatta caraya (Stentor barbatus), male and female. Lithograph by Karl Joseph Brodtmann from Heinrich Rudolf Schinz's Illustrated Natural History of Animals, Zurich, 1827.