Congenital adactyly and oligodactyly with metatarsal hypoplasia in two rhesus monkeys.

Congenital digital defects, particularly adactyly and oligodactyly, have been reported frequently in humans, however, their occurrence in rhesus monkeys is rare, mainly in the hind limbs. We present here for the first time, two female rhesus monkeys with unilateral congenital toe defects with metatarsal involvement. One showing adactyly and the other oligodactyly.