International Journal of Primatology
Fabio Röhe1, 2, 3 , José de Sousa e Silva Jr4, Ricardo Sampaio2 and Anthony B. Rylands5
(1) Wildlife Conservation Society, 69077-000 Manaus, Amazonas, Brazil
(2) Departamento de Ecologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, 69060-001, Amazonas, Brazil
(3)Present address: Departamento de Biologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Bairro Japiim, Manaus, 69077-000, Amazonas, Brazil
(4) Coordenação de Zoologia, Museu Paraense Emílio Goeldi, Terra Firme, Belém, 66077-530, Pará, Brazil
(5) Center for Applied Biodiversity Science, Conservation International, Arlington, VA 22202, USA
Received: 12 February 2009 Accepted: 6 May 2009 Published online: 4 June 2009
Abstract Saddleback tamarins (Saguinus fuscicollis, S. melanoleucus, and S. tripartitus) occur in the upper Amazon, west of the rios Madeira and Mamoré–Guaporé to the Andes. They currently comprise 13 species and subspecies in Bolivia, Brazil, Colombia, Ecuador, and Peru. Here we report on a previously undescribed subspecies of Saguinus fuscicollis from the interfluvium of the lower rios Madeira and Purus in the central Amazon of Brazil. It is a distinct form with a very pronounced mottling on the back giving the appearance of a saddle, a characteristic shared by the 3 species, and the reason for their collective common name. The lack of a white superciliary chevron and its highly mottled ochraceous-dark brown to black saddle that extends from the scapular region to the base of the tail distinguish the new taxon from Saguinus fuscicollis weddelli. The latter characteristic also distinguishes it from another saddleback tamarin (Saguinus fuscicollis ssp.) that has been reported immediately to the south of its range in the same interfluvium. We compare pelage coloration, external characters and craniometric measurements with its geographically closest relatives, Saguinus fuscicollis weddelli and S. f. avilapiresi, and indicate its probable geographic distribution in a small area between the rios Madeira and Purus, just south of the Rio Amazonas.
Keywords Callitrichidae - Central Amazon - geographic distribution - Primates - Saguinus fuscicollis ssp. n.
Fabio Röhe
Email: fabiorohe@gmail.com
A new monkey -- dubbed Mura's saddleback tamarin -- has been discovered in a remote region of the Amazon in Brazil. (Credit: Stephen Nash)
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