Callicebus stephennashi

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Primates
Subordo: Haplorhini
Infraordo: Simiiformes
Parvordo: Platyrrhini

Familia: Pitheciidae
Subfamilia: Callicebinae
Genus: Callicebus
Subgenus: Callicebus
Species: Callicebus stephennashi
Name

Callicebus stephennashi van Roosmalen (et al.), 2002
Vernacular names
Deutsch: Stephen-Nash-Springaffe
English: Stephen Nash's Titi
italiano: Callicebus stephennashi
Nederlands: Callicebus stephennashi
português: Sauá-de-Nash

Stephen Nash's titi monkey (Plecturocebus stephennashi), also known as just Nash's titi or Stephen Nash's monkey, is a species of titi monkey, a type of New World monkey, endemic to the eastern bank of the Purus River in Brazil.[1][2][3] It was discovered by Marc van Roosmalen in 2001 when local fishermen brought specimens to his breeding center.[4] It was described in 2002.[5] It was named in honor of Stephen D. Nash, an illustrator for Conservation International, the organization that funded van Roosmalen's work.[5] The monkey is largely silver with a black forehead and red sideburns and chest, as well as on the underside of the species' limbs.[4][5] It is 28 inches long, although 17 inches is taken up by the titi's tail.[5]
References

Boubli, J.P.; Martins, A.B. (2021). "Plecturocebus stephennashi". IUCN Red List of Threatened Species. 2021: e.T41555A192452547. doi:10.2305/IUCN.UK.2021-1.RLTS.T41555A192452547.en. Retrieved 19 November 2021.
Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 145. ISBN 0-801-88221-4. OCLC 62265494.
Byrne, Hazel; Rylands, Anthony B.; Carneiro, Jeferson C.; Alfaro, Jessica W. Lynch; Bertuol, Fabricio; da Silva, Maria N. F.; Messias, Mariluce; Groves, Colin P.; Mittermeier, Russell A. (1 January 2016). "Phylogenetic relationships of the New World titi monkeys (Callicebus): first appraisal of taxonomy based on molecular evidence". Frontiers in Zoology. 13: 10. doi:10.1186/s12983-016-0142-4. ISSN 1742-9994. PMC 4774130. PMID 26937245.
Lazaroff, Cat (24 June 2002). "Two New Monkeys Found in Amazon Rainforest".
Ellis, Richard (2004). No Turning Back: The Life and Death of Animal Species. New York: Harper Perennial. p. 266. ISBN 978-0-06-055804-8.