Grooming claw

All prosimians have a grooming claw, but the digit that is specialized in this manner varies.

In the suborder Strepsirrhini, which includes lemurs, galagos and lorises, the grooming claw is on the second toe.

[2] Less commonly known, a grooming claw is also found on the second pedal digit of night monkeys (Aotus), titis (Callicebus), and possibly other New World monkeys.

It resembles a claw in both its lateral compression and longitudinal curvature.

However, the tip is not as pointed, and it always stands at a steeper angle, a characteristic that also distinguishes it from a nail.