He had but two fingers on each hand and two toes on each foot, and resembles Kohler's case in the anomalous digital conformation.
Figure 124 represents an exhibitionist with congenital suppression of four digits on each hand.
Tubby has seen a boy of three in whom the first, second, and third toes of each foot were suppressed, the great toe and the little toe being so overgrown that they could be opposed.

In this family for four generations 15 individuals out of 22 presented this defect of the lower extremity.

The patient's brothers and a sister had exactly the same deformity, which has been called "lobster-claw foot." Falla of Jedburgh speaks of an infant who was born without forearms or hands; at the elbow there was a single finger attached by a thin string of tissue.

This was the sixth child, and it presented no other deformity.

Falla also says that instances of intrauterine digital amputation are occasionally seen.
According to Annandale, supernumerary digits may be classified as follows:-- (1) A deficient organ, loosely attached by a narrow pedicle to the hand or foot (or to another digit).
(2) A more or less developed organ, free at its extremity, and articulating with the head or sides of a metacarpal, metatarsal, or phalangeal bone.
(3) A fully developed separate digit.
(4) A digit intimately united along its whole length with another digit, and having either an additional metacarpal or metatarsal bone of its own, or articulating with the head of one which is common to it and another digit.
Superstitions relative to supernumerary fingers have long been prevalent.