Gosselin saw at his clinic a caudal appendix in an infant which measured about ten cm.

Lissner says that in 1872 he assisted in the delivery of a young girl who had a tail consisting of a coccyx prolonged and covered with skin, and in 1884 he saw the same girl, at this time the tail measuring nearly 13 cm.
Virchow received for examination a tail three inches long amputated from a boy of eight weeks.

Ornstein, chief physician of the Greek army, describes a Greek of twenty-six who had a hairless, conical tail, free only at the tip, two inches long and containing three vertebrae.

He also remarks that other instances have been observed in recruits.

Thirk of Broussa in 1820 described the tail of a Kurd of twenty-two which contained four vertebrae.