Metatarso-phalangeal joints absent on D 1; present on D 2, 3, 4, 5.
First phalangeal joints, present in all.
Second phalangeal joints, absent in all.
Cercopithecus Callitrichus J.
Hand. Dorsal surface of the whole hand shows no localised bursæ, only a loose areolar tissue under the skin. Styloid processes of radius and ulna no bursæ.
Foot. Dorsal surfaces over the whole foot similar to that of the hand.
Bursæ present over both malleoli.
Well-formed small bursæ under tendo achillis.
Cercopithecus Mona K.
Hand and Foot. Dorsal surfaces similar to those of J and similar loose areolar tissue over styloid processes of ulna and radius.