Saccopteryx

References useful for identifying species of Saccopteryx include Sanborn (1937) and Jones and Hood (1993); both papers provide keys based on external and craniodental morphology. Although three size­graded species (from large to small, S. bilineata, S. leptura, and S. canescens) are commonly collected sympatrically in Amazonia, the small species at Paracou is S. gymnura, previously unknown from the Guianas.