This report describes a case of unintended importation of tropical baby jumping spiders to a laboratory monkey colony. The spiders were detected in a cocoon attached to a banana for monkey consumption. In identifying the family of spiders as jumping spiders (Salticidae), it turned out that these spiders would not have been venomous to humans and they most likely would not have had the potential to establish a new spider colony in the facility.

In order to contribute to the discussion on the presence of a grooming claw in New World monkeys, we examined living animals, museum specimens and photos of saki monkeys, genus Pithecia. We found that some individuals may possess a grooming claw or at least a grooming claw-like nail on the second toe, while others do not.