Callicebus medemi (Hershkovitz, 1963)

Russell A. Mittermeier, Anthony B. Rylands & Don E. Wilson, 2013, Phitheciidae, Handbook of the Mammals of the World – Volume 3 Primates, Barcelona: Lynx Edicions, pp. 432-483 : 468

21.

Medem’s Tit

Callicebus medemi

French: Titi de Medem / German: Medem-Springaffe / Spanish: Titi de Medem

Other common names: Colombian Black-handed Titi, Medem's Collared Titi, Medem'’s Titi Monkey

Taxonomy. Callicebus torquatus medemi Hershkovitz, 1963 ,

near the mouth of the Rio Mecaya on the right bank of the Rio Caqueta, Putumayo, Colombia; altitude 180 m above sea level.

C. medemi was reclassified as a full species of the torquatus group by C. P. Groves in 2001. Monotypic.

Distribution. SW Colombia (Putumayo Department), in the Colombian Amazon between the upper rios Caqueta and Putumayo, which form the N and S limits ofits distribution, respectively, with the foothills of the Andes to the W; the E limit ofits distribution is poorly known, but it likely intergrades with that of the Yellow-handed Titi ( C. lucifer ), which occurs further E in the Caqueta-Putumayo interfluvium.

Descriptive notes. Head—body 33-1 cm (males) and 23.2-36 cm (females), tail 47-8 cm (males) and 42.5-49.3 cm (females); weight 1100 g (males) and 1150-1460 g (females). Male and female Medem’s Titis are indistinguishable in size and coloration. Their heads, bodies, tails, and underparts are entirely or predominantly black or blackish, except for their throats, which are white.

Habitat. Lowland Amazonian rainforest at elevations of 100-450 m. Given its affinity with the Yellow-handed Titi, Medem’s Titi may prefer white-sand forest, but this is not certain.

Food and Feeding. There is no information available for this species.

Breeding. There is no specific information available for this species, but all titis form monogamous breeding pairs. The male provides parental care by carrying the single offspring.

Activity patterns. There is no information available for this species.

Movements, Home range and Social organization. There is no information available for this species.

Status and Conservation. CITES Appendix II. Classified as Vulnerable on The IUCN Red List. Deforestation and habitat disturbance are a concern within the distribution of Medem’s Titi, and some hunting and trapping may occur, although the region in which it occursis still relatively undeveloped. It is found in La Paya National Natural Park.

Bibliography. Defler (1994b, 2004), Groves (2001), Hernandez-Camacho & Cooper (1976), Hershkovitz (1963, 1988, 1990), Norconk (2011), Veiga & Palacios (2008b).

Figures

On following pages: 20. Madidi Titi (Callicebus aureipalatii); 21. Medem'’s Titi (Callicebus medemi); 22. White-collared Titi (Callicebus torquatus); 23. White-chested Titi (Callicebus lugens); 24. Yellow-handed Titi (Callicebus lucifen; 25. Rio Purus Titi (Callicebus purinus); 26. Rio Jurué Collared Titi (Callicebus regulus); 27. Black-fronted Titi (Callicebus nigrifrons); 28. Masked Titi (Callicebus personatus); 29. Southern Bahian Titi (Callicebus melanochir); 30. Blond Titi (Callicebus barbarabrownae); 31. Coimbra-Filho's Titi (Callicebus coimbral).

Distribution. SW Colombia (Putumayo Department), in the Colombian Amazon between the upper rios Caqueta and Putumayo, which form the N and S limits ofits distribution, respectively, with the foothills of the Andes to the W; the E limit ofits distribution is poorly known, but it likely intergrades with that of the Yellow-handed Titi ( C. lucifer ), which occurs further E in the Caqueta-Putumayo interfluvium.