COMPARISON OF GUT PROPORTIONS IN 4 SMALL-BODIED AMAZONIAN CEBIDS

Gut proportions in four small-bodied Amazonian cebids (Callicebus cali gatus, Callicebus moloch, Pithecia irrorata, and Saimiri madeirae) are reported and compared in the context of known differences in feeding ecology. The gastrointestinal tracts of both Callicebus and Pithecia w ere found to be relatively undifferentiated, as expected from their pr edominantly frugivorous diets. In Saimiri, the marked dominance of the small intestine correlates with a highly insectivorous diet. (C) 1995 Wiley-Liss, Inc.