Species Diversity in Lorisids: A Preliminary Analysis of Arctocebus, Perodicticus, and Nycticebus

  • Jeffrey H. Schwartz
  • Jeremy C. Beutel


In recent decades, the strepsirhine family, Lorisidae1, has been thought of as consisting taxonomically of only four extant genera, of which two are considered to be monotypic: the Asian Loris (which is now apparently confined to the island of Sri Lanka), and the African Perodicticus potto. The African genus, Arctocebus, apparently comprises two species, A. calabarensis and A. aureus. And the Asian genus Nycticebus also is supposed to embrace only two species, N. pygmaeus and the somewhat larger N. coucang. N. pygmaeus is distributed roughly throughout the mainland of southeast Asia. N. coucangis sympatric with N. pygmaeus on the mainland, but also occurs on the islands of Borneo, Sumatra, Java, and, purportedly, the Philippines.


Cheek Tooth Crown Height Skull Length Dental Measurement Interorbital Breadth 


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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Jeffrey H. Schwartz
    • 1
  • Jeremy C. Beutel
    • 1
  1. 1.Department of AnthropologyUniversity of PittsburghPittsburghUSA

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