R. M. Souza Barros

Aotus from the southwestern Amazon region is geographically and chromosomally intermediate betweenA. azarae boliviensis andA. infulatus

J. C. Pieczarka, C. Nagamachi, R. M. Souza Barros, 1993, Primates.

Chromosomal evolution inCallithrix emiliae

J. C. Pieczarka, C. Nagamachi, R. M. Souza Barros, 1990, Chromosoma.

Karyotypic comparison among Cebuella pygmaea, Callithrix jacchus and C. emiliae (Callitrichidae, Primates) and its taxonomic implications

J. C. Pieczarka, C. Nagamachi, R. M. Souza Barros, 2004, Genetica.