<unk>  ("spider fingers") is a medical condition which is characterized by fingers and toes that are abnormally long and slender, in comparison to the palm of the hand and arch of the foot. In some cases, the thumbs of an individual with the condition are pulled inwards towards the palm. This condition is present at birth.
Arachnodactyly
Syndactyly
Polydactyly
Clinodactyly
Sclerodactyly
Oligodactyly
Synpolydactyly
Pachydermodactyly