Photo-Sources of this composition: 

• Loris: H. Schulze.
• Arctocebus: based on a photo by Simon Bearder, changed.
• Nycticebus coucang: photo by Frank Wiens, changed.
• N. pygmaeus: photos by Bernhard Meier and Rüdiger Lippe.
• Perodicticus: based on a variety of photos from Schultz 1971
• and other sources, changed.