are lemurs are nocturnal
Lemur catta, Madagascar cat, ring-tailed lemur-small lemur having its tail barred with black. aye-aye, Daubentonia madagascariensis-nocturnal lemur with long bony fingers and rodent-like incisor teeth closely related to the lemurs. Loris gracilis, slender loris-slim-bodied lemur of southern India and Sri Lanka.