Callithrix (Callithrix) geoffroyi Humboldt 1812
Callithrix (Callithrix) geoffroyi Humboldt 1812, Rec. Obs. Zool. Anat. Comp.: 360.
Type Locality: Brazil, Victoria, between Rios Espirito Santo and Jucu.
Vernacular Names: White-headed Marmoset.
Synonyms: Callithrix (Callithrix) albifrons (Thunberg 1819); Callithrix (Callithrix) leucocephalus (Humboldt 1812); Callithrix (Callithrix) leucogenys (Gray 1870); Callithrix (Callithrix) maximiliani (Reichenbach 1862); Callithrix (Callithrix) melanotis (Lesson 1840) .
Distribution: EC Brazil (coast of Bahia).
Conservation: CITES – Appendix II; IUCN – Vulnerable.
Discussion: Subgenus Callithrix . Accepted as a species by Mittermeier et al. (1988) and Groves (1989).