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SPECIES Saimiri ustus

Author:I. Geoffroy, 1843.
Citation:C. R. Acad. Sci. Paris, 16(21): 1157.
Common Name:Bare-eared Squirrel Monkey
Type Locality:Brazil, Amazonas, Rio Madeira, Humaitu.
Distribution:S Brazil: south of Rio Amazon, probably from Rio Xingu to Lage Tefé, approx. 61°30’W.
Status:CITES – Appendix II; IUCN – Least Concern.
Comments:S. sciureus species group. Thorington (1985) and Costello et al. (1993) argued that ustus is a synonym of S. sciureus (so that the correct name should be madeirae), but this is not the case (Groves, 2001c:159). Costello et al. (1993) regarded this species as not specifically distinct from S. sciureus.
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Offspring:

Synonyms:

    madeirae Thomas, 1908

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