Attributes / relations provided by
♦ 1Callithrix pygmaea, Wendy R. Townsend, MAMMALIAN SPECIES No. 665, pp. 16 (2001)
♦ 2Myocastor coypus, Charles A. Woods, Luis Contreras, Gale Willner-Chapman, and Howard P. Whidden, MAMMALIAN SPECIES No. 398, pp. 1-8 (1992)