NATURAL HISTORY · CATALOGUE RECORD
Olalla Brother's Titi
Plecturocebus olallae (Lönnberg, 1939)
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The Olalla brothers's titi monkey (Plecturocebus olallae) is a species of titi monkey, a type of New World monkey, endemic to Bolivia. There are between 110 and 150 individuals in the wild.
Wikipedia contributors, Olalla brothers' titi monkey; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:14:35.452479+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Plecturocebus olallae (Lönnberg, 1939)
- Name authority
- (Lönnberg, 1939)
- Common name
- Olalla Brother's Titi
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Primates
- Family
- Pitheciidae
- Genus
- Plecturocebus
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderPrimates Linnaeus, 1758
- suborderHaplorrhini Pocock, 1918
- infraorderSimiiformes Haeckel, 1866
- familyPitheciidae Mivart, 1865
- subfamilyCallicebinae Pocock, 1925
- genusPlecturocebus Byrne, Rylands, Carneiro, Lynch Alfaro et al., 2016
- speciesPlecturocebus olallae (Lönnberg, 1939)
Close classified relatives
These entries share the source’s genus, Plecturocebus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Lake Baptista TitiPlecturocebus baptista (Lönnberg, 1939) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Brown TitiPlecturocebus brunneus (Wagner, 1842) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Caquetá TitiPlecturocebus caquetensis (Defler, Bueno & Garcia, 2010) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Ashy TitiPlecturocebus cinerascens (Spix, 1823) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Rio Mayo TitiPlecturocebus oenanthe (Thomas, 1924) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Stephen Nash's TitiPlecturocebus stephennashi (M. van Roosmalen, T. van Roosmalen & Mittermeier, 2002) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Toppin's TitiPlecturocebus toppini (Thomas, 1914) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Urubamba Brown TitiPlecturocebus urubambensis (Vermeer & Tello-Alvarado, 2015) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Vieira's TitiPlecturocebus vieirai (Gualda-Barros, Nascimento & Amaral, 2012) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Ornate TitiPlecturocebus ornatus (Gray, 1866) | PitheciidaeChordata | Accepted speciesRecorded extant |
| Groves' TitiPlecturocebus grovesi Boubli, Byrne, Silva, Silva-Júnior, Costa Araujo, Bertuol, Gonçalves, Melo, Rylands et al., 2019 | PitheciidaeChordata | Accepted speciesRecorded extant |
| Madidi TitiPlecturocebus aureipalatii (Wallace, Gómez, A. M. Felton & A. Felton, 2006) | PitheciidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Callicebus olallae Lönnberg, 1939 Lönnberg, 1939 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=1025115 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:4K5YD. Classification follows source parent identifiers. English common names may vary by region.