| [morphologic and genetic differentiation of night monkey (aotus infulatus, primates, platyrrhinians, cebidae) populations from the right and left banks of rio tocantins (brazil)]. | the cranial morphology of 28 specimens of night monkeys (genus aotus) was examined using three-dimensional geometrical morphometrics. new results of the morphological differences between two populations of aotus infulatus from both banks of the rio tocantins are proposed. these morphological results totally agree with the genetic distinction of these populations proposed by schneider -- and sampaio --, and probably point out recent rapid evolutive changes for this species. our morphometric resul ... | 2007 | 17303542 |
| abo blood groups in the primate species of cebidae from the amazon region. | the abo blood groups were determined in blood and saliva collected from 40 aotus infulatus, 74 saimiri sciureus, and 96 cebus apella from the amazonian region along the tocantins river. saliva samples were tested for human abh antigens by a standard hemagglutination inhibition test. aotus infulatus showed monomorphism, exhibiting only the b blood group. saimiri sciureus exhibited the a (67) and ab (7) phenotypes. all four phenotypes have been found in c. apella: o (8), a (52), b (19) and ab (17) ... | 2002 | 12190854 |