On the mammals collected by Friedrich Sellow in Brazil and Uruguay (1814 – 1831), with special reference to the types and their provenance Author Garbino, Guilherme S. T. Author Nogueira, Marcelo R. text Zootaxa 2017 4221 2 172 190 journal article 37302 10.5281/zenodo.248623 1bdf89cc-ca41-4094-a65a-bf6c59ca96af 1175-5326 248623 35BBFC9F-A97E-4E08-A294-F8F6D381A7B7 Mico argentatus (ZMB_MAM 284) and Saguinus niger (ZMB_MAM 289) According to specimen’s labels and the Generalkatalog, these two callitrichids were collected by Sellow. The Saguinus niger ( ZMB _MAM 289, skin only) has “ Pará ” as the locality ( Fig. 7 d). The Mico argentatus ( ZMB _MAM 284, skin only) label reads “Brasilien” ( Fig. 7 c). These two taxa are restricted to the Amazonia of the Brazilian state of Pará ( Rylands and Mittermeier 2013 ) and more likely were collected by Sieber , who acquired specimens in that region for Hoffmannsegg ( Ávila-Pires 1967 ). Ávila-Pires (1967) reported on a similar discrepancy for specimens of the bristle-spined rat, Chaetomys subspinosus ( e.g. , ZMB _MAM 1300), an animal restricted to the Atlantic Forest of Rio de Janeiro , Minas Gerais , Espírito Santo , Bahia , and Sergipe , but whose specimen labels and catalogue entries read “ Cametá ,” a locality in the Amazonia of Pará , northern Brazil , where Sieber made collections.