Last seen 1978, Cote d’Ivoire.

Miss Waldron’s red colobus was discovered in December 1933 by a British Museum collector who named it after a museum colleague on the expedition, Miss F. Waldron.

 The species was last seen 1978 in the Cote d’Ivoire and was considered extinct in 2000 after repeated forest surveys failed to find the monkey – it was the first hard evidence of the extinction of a primate in more than 500 years.

Evidence from hunters appeared in 2000 and 2001 that suggested that a very small number of these monkeys may be living in the southeast corner of Côte d’Ivoire.

No photograph of a living Miss Waldron’s red colobus is known to exist.