ArticlePDF Available

Rediscovery of Vanzolini’s Bald-Faced Saki, Pithecia vanzolinii Hershkovitz, 1987 (Primates, Pitheciidae): first record since 1956

Authors:

Abstract and Figures

We report the rediscovery of Pithecia vanzolinii in the upper Juruá River Basin, in the State of Acre, Brazil. An individual was collected after being hunted by a local inhabitant of an extractive community in the Riozinho da Liberdade Extractive Reserve. This is the first record of this species in the last 60 years and highlights the importance of intensifying studies of this almost unknown species.
Content may be subject to copyright.
Check List the journal of
biodiversity data
1
Rediscovery of Vanzolini’s Bald-Faced Saki, Pithecia vanzolinii
Hershkovitz,  (Primates, Pitheciidae): rst record since 
André V. Nunes,  & José E. Serrano-Villavicencio, 
1 Pós-graduação, Departamento de Ecologia e Conservação, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva, s/n, Cidade
Universitária, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil
2 Pós-graduação, Mastozoologia, Museu de Zoologia, Universidade de São Paulo, Avenida Nazaré, 481 - Ipiranga, 04263-000, São Paulo, Brazil
3 Centro de Investigación Biodiversidad Sostenible (BioS), Lima, Perú
4 Corresponding author. E-mail: tataupas@gmail.com
Abstract: We report the rediscovery of Pithecia vanzolinii
in the upper Juruá River Basin, in the State of Acre, Brazil.
An individual was collected after being hunted by a local
inhabitant of an extractive community in the Riozinho da
Liberdade Extractive Reserve. is is the rst record of this
species in the last  years and highlights the importance
of intensifying studies of this almost unknown species.
Keywords: subsistence hunting; Pitheciinae; extractive reserve; Acre
Vanzolini’s Bald-Faced Saki, Pithecia vanzolinii Hershkovitz,
, is a little-known primate species which is poorly
represented in scientic collections worldwide. To our
knowledge, there are only  specimens of P. vanzolinii
preserved in four collections: Swedish Museum of Natural
History, Stockholm, Sweden (NHR,  specimens), Museu
Paraense Emílio Goeldi, Pará, Brazil (MPEG,  specimen),
Museu Nacional do Rio de Janeiro, Rio de Janeiro, Brazil
(MNRJ, ), and Museu de Zoologia da Universidade de São
Paulo, São Paulo, Brazil (MZUSP,  specimens).
e taxonomic history of Vanzolini’s Bald-faced Saki
began when Lönnberg () erroneously considered
the populations of Pithecia from the right bank of Lago
Grande, Juruá River, and Santo Antônio, Eirú River, state
of Amazonas — all localities within the distribution of P.
vanzolinii — as Pithecia monachus hirsuta of Spix ().
Likewise, H () included in his concept of
Pithecia hirsuta specimens from Santa Cruz, Eirú River. D
V () was the rst to notice that the specimens from
Santo Antônio and Santa Cruz exhibited a dierent phe-
notype from Spix’s Pithecia hirsuta. Taking into account 
V’s () observation, H () reconsid-
ered his previous position about P. hirsuta populations from
the Brazilian states of Acre and Amazonas and recognized
these specimens as a new subspecies, Pithecia irrorata van-
zolinii. e holotype designated by H ()
(MZUSP ) is an adult male collected by Alfonso M.
Olalla in  during the expedition to the Upper Juruá
River (state of Amazonas), which included portions of the
Purus River drainage. is expedition was nanced by the
Swedish Count Nils Gyldenstolpe (O ; G-
 ; P ). ese specimens collected
by A. M. Olalla in  were sold to the NHR, the MNRJ
and the MZUSP. For the original description of this taxon,
H () also reviewed and used material col-
lected by the ornithologist Fernando da Costa Novaes and
the taxidermist M. M. Moreira from June to September
of , in a joint expedition of the MPEG, the Departa-
mento de Produção Mineral and the American Museum of
Natural History. ese two researchers traveled along the
Purus River between Cruzeiro do Sul and the Brazil/Peru
border collecting birds and several species of primates. Two
specimens of Pithecia were collected by Novaes’ expedition
and sent to the MPEG, where they are deposited under the
voucher numbers MPEG , .
is subspecies was elevated to full species by M
(), who argued that there are no other sakis that closely
resemble it. M () also stated that she had not seen
a living specimen of P. vanzolinii in captivity, in the wild, or
in photographs. erefore, in the absence of new records
after Novaes and Moreira’s collection, Pithecia vanzolinii has
not been recorded in the wild in the past  years.
Moreover, the natural history and the conservation
status of Pithecia vanzolinii are completely unknown.
According to the Brazilian List of Endangered Species,
Pithecia vanzolinii has a relatively broad distribution and
no obvious threats, and for this reason is listed as Least
Concern (LC) (R  M ). On the other
hand, this species is listed as Data Decient (DD) by the
IUCN, based on its poorly dened range and lack of knowl-
edge about its demography and potential threats (M
 V ).
Based on recent material, we report the rst record of
Pithecia vanzolinii since , morphologically compare it
Check List 13(1): 2048, 16 February 2017 doi: https: //doi.or g/10.15560/13.1.20 48
ISSN 1809-127X © 2017 Check List and Auth ors
1
13
2048
16 February 2017
Notes oN GeoGraphic DistributioN
Nunes & Serrano-Villavicencio | New record of Vanzolini’s Bald-Faced Saki
Che ck List | www.biotaxa.org/cl Volume 13 | Issue 1 | Article 2048 2
to the holotype, and comment on the species distribution
and observed potential threats in the study area.
During a eld expedition in the Riozinho da Liberdade
Extractive Reserve, a specimen (MZUSP , skull
and tissue) of Pithecia vanzolinii was registered occasion-
ally on  November . e specimen was hunted in
the traditional community Passo da Pátria in Acre, Brazil
(°ʹ.ʺ S, °ʹ.ʺ W) (Figure ), which is
one of the  communities ( families) distributed over
, ha of lowland rainforest (Ombrophilous Open
Forest). e reserve is located in the Upper Juruá river
basin, in the state of Acre and southwestern Amazonas. It
comprises four municipalities: Cruzeiro do Sul, Marechal
aumaturgo, Porto Walter, and Tarauacá. is region is
composed of traditional communities, small plantations,
extractivism, hunting, and shing. e specimen was
obtained during an ongoing doctoral eld study, carried
out by the rst author, and all necessary permits for the
collection of specimens were granted by the Instituto Chico
Mendes de Conservação da Biodiversidade (ICMBio), Min-
istry of the Environment (Process No. -).
e adult male MZUSP  has the characters of
Pithecia vanzolinii described by H (), i.e.,
general coloration black with contrasting yellow upper and
lower limbs; the individual hairs black with ne bu or ochre
subterminal bands; frontal region black, and cheeks with
bu malar stripes (Figure ). By the time of collection, the
specimen’s hands and feet had already been removed and
separated from the body and, after photographing (Figure
), were eventually lost. e specimen was also directly
compared with the holotype and  other specimens in
the MZUSP (see Appendix). e skull measurements fell
Figure 1. Map with the historical records of Pithecia vanzolinii (dots) and our new record (star). I. Riozinho da Liberdade Extractive Reserve. Indigenous
communities: A) Kulina do Médio Juruá, B) Campinas/Katutina, and C) Arara do Igarapé Humaitá. For locality data see Table 1.
Table 1. Summary of the localities of Pithecia vanzolinii. The locality numbers refer to the points shown in Figure 1.
Locality no. Locality Latitude Longitude Source
1 Cruzeiro do Sul, Acre, Brazil 07°37’ S 072°36’ W Hershkovitz (1987)
2 Eirú River, Santa Cruz, Amazonas, Brazil (type locality of Pithecia vanzolinii) 07°23’ S 070°47’ W Hershkovitz (1987)
3 Eirú River, Lago Grande, Amazonas, Brazil 06°41’ S 069°53’ W Hershkovitz (1987)
4 Eirú River, Santo Antônio, Amazonas, Brazil 06°42’ S 069°52’ W Hershkovitz (1987)
5 Community Passo da Pátria, Riozinho da Liberdade Extractive Reserve, Acre, Brazil 08°22’14.45’’ S 072°08’19.22’’ W This study
MZUSP 35693
Nunes & Serrano-Villavicencio | New record of Vanzolini’s Bald-Faced Saki
Che ck List | www.biotaxa.org/cl Volume 13 | Issue 1 | Article 2048 3
two state forests (Mogno and the Rio Liberdade, Acre), and
four indigenous reserves of the Katukina, Shawandawa,
Ashaninka, Jaminawa, Arara, and Yawanawa ethnic groups.
is scenario suggests a delicate situation, especially given
the high deforestation rate in Acre, which has the second-
highest rate of deforestation within Brazilian Amazonia
(INPE ), and because Pithecia vanzolinii is subject
to hunting pressure, as other primate species that are
commonly hunted in the Brazilian Amazon (P ;
C ). is situation indicates potential
threats to Pithecia vanzolinii populations and highlights the
urgency of ecological studies and conservation initiatives
directed towards the species.
within the known range for the species (Figure ; Table ).
is new record represents the southernmost known
locality record for the species and extends the known
range of Pithecia vanzolinii approximately  km to the
southeast. is record falls within the putative distribution
suggested by H (), located between
the south bank of Juruá River and the south bank of its
tributary, the Tarauacá River in southwestern Amazonas
and Acre (Figure ).
As far as is known, the species’ area of occurrence is
sparsely populated, although ve settlement programs
exist, as well as eight sustainable-use protected areas: two
extractive reserves (Alto Tarauacá and Alto Juruá, Acre),
Figure 2.Pithecia vanzolinii. A. Dorsal view of adult male (MZUSP 35693) collected in Riozinho da Liberdade Extractive Reserve, Acre, Brazil. B. Holotype
(MZUSP 5491; adult male, Eirú River, Santa Cruz, Amazonas, Brazil).
Nunes & Serrano-Villavicencio | New record of Vanzolini’s Bald-Faced Saki
Che ck List | www.biotaxa.org/cl Volume 13 | Issue 1 | Article 2048 4
ACKNOWLEDGEMENTS
We thank Pablo Saldo and Julia Vilela for help and logistical
support through the Chico Mendes Institute of Biodi-
versity (ICMBio); the Program for Protected Areas of the
Amazon (ARPA) for logistical support; the Coordenação de
Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for
fellowship grants to AVN and JSV; Mario de Vivo, Fábio
Oliveira do Nascimento, Rafaela L. Vendramel, and Juliana
Gualda Barros from the MZUSP for the valuable comments
of the manuscript; Erich Fischer and Cindy Hurtado for
Figure 3. Specimen of Pithecia vanzolinii (MZUSP 35693) collected in Riozinho da Liberdade Extractive Reser ve, Acre, Brazil. A. Face in detail. B. Left hand
and right foot.
Table 2. Summary of male and female cranial and dental measurements (mm) of our specimen compared with male and female specimens of Pithecia
vanzolinii from the MZUSP (see Appendix for specimen details). All measurements are mean ± standard deviation
Measurements (mm) MZUSP 35693
(new record)
MZUSP 5491
(Holotype)
Pithecia vanzolinii
(n = 9)
Pithecia vanzolinii
(n = 12)
Greatest Skull length 86.13 86.18 81.93 (± 2.94) 81.04 (± 2.52)
Condylobasal length 64.73 64.88 61.93 (± 2.88) 61.14 (± 3.49)
Zygomatic breadth 58.45 57.12 54.38 (± 3.04) 54.41 (± 3.31)
Biorbital breadth 45.35 44.89 42.88 (± 2.4) 42.54 (± 2.38)
Postorbital constriction 34.49 32.66 35.9 (± 2) 36.11 (± 1.48)
Braincase length 62.69 62.74 56.21 (± 2.54) 56.12(± 1.91)
Braincase width 45.78 41.96 43.44 (± 1.27) 44.24 (± 1.81)
Nasal length (medial) 17.98 19.17 16.73 (± 1.32) 16.22(± 1.41)
Nasal length (greatest) 20.25 21.2 18.42 (± 1.4) 18.45 (± 1.70)
Interorbital width 5.48 6.67 6.46 (± 0.62) 6.54 (±0.82)
I-M³ 30.47 32.95 30.34 (± 1.15) 30.17 (±1.23)
C-M³ 24.19 23.62 24.13 (± 1.11) 23.67 (± 1.01)
PM²-M³ 15.54 16.18 18.31 (± 0.85) 18.42 (± 0.52)
M¹-M³ 9.98 10.46 9.91 (± 0.41) 10.38 (± 0.31)
I²-I² 12.47 11.88 12.13 (± 0.66) 11.89(± 0.73)
C¹-C¹ 25.41 25.38 24.85 (± 1.43) 23.79 (± 1.73)
M¹-M¹ 23.88 23.43 22.93 (± 1.04) 23.16 (± 1.19)
M³-M³ 22.39 21.69 19.7 (± 6.4) 21.47 (± 6.80)
Canine Length (from cingulum) 11.85 11.96 11.46 (± 0.96) 10.27 (± 1.18)
Mandible length 56.48 57.71 54.95 (± 2.71) 54.36 (± 3.65)
Mandible height 42.54 43.72 36.92 (± 3.18) 36.10 (± 3.49)
Nunes & Serrano-Villavicencio | New record of Vanzolini’s Bald-Faced Saki
Che ck List | www.biotaxa.org/cl Volume 13 | Issue 1 | Article 2048 5
reading the manuscript; Gabby Guilhon for the informa-
tion concerning the MNRJ’s material. We would like to
thank Hannah Doerrier and K. Supriya who reviewed the
English version of the manuscript. Finally, Anderson Feijó
and two anonymous reviewers for their valuable comments
which improved the manuscript.
LITERATURE CITED
C, P.A.L. . Deforestation and hunting eects on
wildlife across Amazonian indigenous lands. Ecology and Society,
(): –. doi: ./ES--
G, N. . Preliminary descriptions of some new birds
from the Brazilian Amazonas. Arkiv för Zoologi B(): –.
H, P. . e species of sakis, the genus Pithecia
(Cebidae, Primates) with notes on sexual dichromatism. Folia
Primatologica : –.
H, P. . e taxonomy of South American sakis,
genus Pithecia (Cebidae, Platyrrhini): a preliminary report and
critical review with the description of a new species and a new
subspecies. American Journal Primatology (): –. doi:
./ajp.
INPE/PRODES (I N  P E).
. Monitoramento da oresta Amazônica brasileira por
satélite — projeto PRODES. São Paulo, Brasil: Instituto Nacional
de Pesquisas Espaciais (INPE). Accessed at http://www.obt.inpe.
br/prodes,  December .
L, E. . Remarks on some members of the genera Pithe-
cia and Cacajao from Brazil. Arkiv för Zoologi (): –.
M, L.K. . A taxonomic revision of the saki monkeys,
Pithecia Desmarest, . Neotropical Primates (): –. doi:
./..
M, L.K.  L.M. V. . Pithecia vanzolinii. e IUCN Red
List of threatened species . doi: ./iucn.uk.-.rlts.
ta.en
O, A.M. . Um viaje a pesquizas zoologicas hacia el Rio
Jurúa [sic], Estado del Amazonas, Brasil . II. Notas de
campo: Observaciones biológicas. Revista do Museu Paulista :
–.
P, B.D. . Mammals in the Royal Natural History
Museum, Stockholm, collected in Brazil and Bolivia by A.M. Olalla
during –. Fieldiana (Zoology) : –. doi: ./
bhl.title.
P, C.A. . Eect of hunting on western Amazonian primate
communities. Biological Conservation (): –. doi: ./
-()-m
R, A.L  A .B. M. . Avaliação do risco de extinção de
Pithecia irrorata vanzolinii (Hershkovitz, ) no Brasil. Processo
de avaliação do risco de extinção da fauna brasileira. ICMBio.
Accessed at http://www.icmbio.gov.br/portal/biodiversidade/
fauna-brasileira/estado-de-conservacao/-mamiferos-
pithecia-irrorata-vanzolinii-parauacu.html,  December .
S, J. . De Simarium et Vespertiliarum brasilienses species
novae, ou histoire naturelle des espèces nouvelles de singes et
de chauve-souris observées et recueillies pendant le voyage dans
l’intérieur du Brésil. Monaco: Typis Francisci Seraphici Hübsch-
manni. viii +  pp.
 V, M. . On some monkeys from Rondônia, Brazil (Pri-
mates: Callitrichidae, Cebidae). Papéis Avulsos de Zoologia (São
Paulo) (): –.
Figure 4. Dorsal, ventral and lateral views of skull and lateral view of mandible of Pithecia vanzolinii (MZUSP 35693).
Nunes & Serrano-Villavicencio | New record of Vanzolini’s Bald-Faced Saki
Che ck List | www.biotaxa.org/cl Volume 13 | Issue 1 | Article 2048 6
Authors’ contributions: AVN and JESV equally collected the data
and wrote the text.
Received:  January 
Accepted:  February 
Academic editor: Guilherme S. T. Garbino
APPENDIX
Specimens examined
Pithecia vanzolinii (n = ). Acre: Community Passo da Pátria, Rioz-
inho da Liberdade Extractive Reserve: MZUSP . Amazonas:
Santa Cruz, Rio Eirú: MZUSP  (holotype of Pithecia vanzolinii),
MZUSP , MZUSP , MZUSP , MZUSP , MZUSP
, MZUSP , MZUSP , MZUSP , MZUSP ,
MZUSP , MZUSP , MZUSP , MZUSP , MZUSP
, MZUSP , MZUSP , MZUSP , MZUSP ,
MZUSP , MZUSP , MZUSP , MZUSP , MZUSP
, MZUSP .
Article
Full-text available
The yellow-tailed woolly monkey, Lagothrix flavicauda (Humboldt, 1812), is a large atelid endemic to the cloud forests of Peru. The identity of this species was uncertain for at least 150 years, since its original description in 1812 without a voucher specimen. Additionally, the absence of expeditions to the remote Peruvian cloud forests made it impossible to collect material that would help to confirm the true identity of L. flavicauda during the 19th and first half of the 20th century. Until now, the specimens of L. flavicauda collected by H. Watkins, in 1925, in La Lejía (Amazonas, Peru) were thought to be the oldest ones deposited in any scientific collection. Nevertheless, after reviewing the databases of the several international museums and literature, we found one specimen of L. flavicauda deposited at the Muséum National d’histoire Naturelle (Paris, France) collected in 1900 by G.A. Baër, in the most eastern part of San Martín (Peru), where the presence of this species was not confirmed until 2011. Thus, Baër’s specimen represents the oldest known specimen of the yellow-tailed woolly monkey and the only one coming from the eastern part of the species’ distribution. Finally, we highlight the importance of online scientific databases for easily diagnosable species. However, caution needs to be taken when using them. We also discuss the value of scientific collections as sources of new discoveries.
Article
Full-text available
The number of Pithecia species has considerably increased in recent years. In the first comprehensive taxonomic revision for the genus, five species were recognized, among these, Pithecia irrorata, with two subspecies: P. irrorata irrorata and P. irrorata vanzolinii. These subspecies were elevated to full species in the most recent taxonomic revision of the genus, which was based primarily on pelage color. Additionally, it was proposed that P. irrorata was a group of undescribed species, and three additional species were described from P. irrorata: P. mittermeieri, P. rylandsi, and P. pissinattii. However, diagnoses and geographic distributions are not well defined for the species proposed, bringing confusion to subsequent studies. To address the current hypothesis on the species diversity in the P. irrorata species group, we conducted comparative analyses using the same source of evidence: pelage color variation. Material analyzed includes specimens throughout the distribution of the group in Peru, Bolivia, and Brazil. Based on our results, we recognize two groups that are morphologically diagnosable and correspond to geographically isolated populations. The senior names available for these groups are P. irrorata and P. vanzolinii. We recognize P. mittermeieri, P. rylandsi, and P. pissinattii as junior synonyms of P. irrorata. We also discuss some taxonomic inaccuracies regarding the type localities and type material for the senior and junior names, provide synonymy lists based on extensive literature review, and provide distribution maps for the valid species we recognized.
Article
Full-text available
Deforestation and hunting are main wildlife threats in Amazonia, affecting the ecosystem and dwellers that rely on game meat. Data from 9109 hunted animals from 35 villages of 8 Pano indigenous lands in Brazilian Amazonia were used to build 4 indicators of wildlife status based on ecological models and to analyze the effects of deforestation, hunting pressure, and socioeconomic aspects on wildlife variation. Although variation in wildlife status indicated depletion in certain locations, hunters from most villages continued to hunt their preferred game after decades of intensive hunting. Indigenous hunting resulted in local depletion of species because of the dispersal of animals away from the source of hunting. This local effect can be explained by the permanent hunting of wildlife in the region, the behavior of Pano hunters, and the design and scale of this study analysis. Regionally, however, deforestation and associated factors are the cause of reduced population density and hunting success, extirpating sensitive species. Roads exacerbated hunting effects through disturbance, encroachment, and provision of access to livestock meat at markets. To avoid local depletion, indigenous people must review their subsistence hunting practices, whereas to achieve regional wildlife conservation and to maintain indigenous societies in Amazonia, wildlife habitat loss should be limited.
Article
Full-text available
For more than 200 years, the taxonomy of Pithecia has been floating on the misunderstanding of a few species, in particular P. pithecia and P. monachus. In this revision, historical names and descriptions are addressed and original type material is examined. For every museum specimen, all location, collection, and museum data were recorded, and photographs and measurements of each skin, skull, mount, or fluid specimen were taken. The revision is based on work conducted in 36 museums in 28 cities from 17 countries in North America, South America, Europe, and Japan, resulting in the examination of 876 skins (including mounts and fluids), 690 skulls, and hundreds of photographs taken by the author and by colleagues in the field of living captive and wild sakis of all species, and through internet searches. Per this revision, there are 16 species of Pithecia: five currently recognized, three reinstated, three elevated from subspecies level, and five newly described.
Article
Transect surveys were carried out in seven western Amazonian upland forest sites and compared with four additional sites to examine effects of hunting by humans on the structure of species-rich primate communities. Primate body mass was a strong positive correlate of its crude and metabolic population biomass in non-hunted but not in hunted sites. Primate body mass was a good negative correlate of population density in hunted but not in non-hunted sites. Group density was not clearly affected by hunting activity. Large primates had significantly lower group densities than small primates in both hunted and non-hunted sites. These trends are largely a consequence of differences in abundance of large-bodied genera (i.e.Alouatta, Ateles and Lagothrix), accounting for the bulk of the primate biomass in non-hunted sites, but being over-harvested or becoming extinct in sites hunted by man.
Article
The report begins with a key based on external characters and a tabulation of diagnostic cranial characters for separating Pithecia from Chiropotes and Cacajao of the subfamily Pitheciinae. The description of Pithecia is based on external, cranial, dental, and certain postcranial characters with particular attention to limb proportions and the femoral third trochanter. The species of Pithecia are arranged in the Pithecia pithecia group with P. p. pithecia and P. p. chrysocephala, and the Pithecia monachus group with P. m. monachus, P. m. milleri, P. irrorata irrorata, P. i. vanzolinii (new subspecies), P. aequatorialis (new species), and P. albicans. The discussion on nomenclature compares the usage of names by various authors for the different taxa. The species previously identified by Hershkovitz [Hershkovitz, 1979] as Pithecia monachus proves to be the new species P. aevuatorialis, whereas the sympatric species he called P. hirsut Spix (1823)s the same as true P. monachus É. Geoffroy (1812). Speciation among sakis is expressed, for the most part, by marked differentiation in coloration and head pelage patterns in males. Females of corresponding males diverged along the same lines but to such lesser degree that specific discrimination between them is complicated. Details of sexual dimorphism in coloration and pelage patterns are described, and those of size are documented by summaries of weights and by measurements of external, cranial, dental, and skeletal characters for each sex of each taxon. A key to the species and subspecies of Pithecia is followed by an account of each taxon that includes statements of taxonomic history or synonymy, type specimen, type locality, and geographic distribution. A full description with the addition of accounts of diagnostic characters, variation, comparisons, measurements, list of specimens examined, and other matters, is provided only or the new forms Pithecia aequatorialis and P. irrorata vanzolinii. Comparable descriptions of all taxa are contained in Volume 2 of Living New World Monkeys, currently in preparation. The gazetteer, however, includes complete data for all saki collecting and recorded localities plotted on the range maps.
Article
Recognized species of sakis, South American monkeys of genus Pithecia (Cebidae), are P. hirsuta Spix, P. monachus E. Geoffroy, P. albicans Gray, P. pithecia Linnaeus. Evolutionary stages in sexual dichromatism in sakis and other primates are noted.
De Simarium et Vespertiliarum brasilienses species novae, ou histoire naturelle des espèces nouvelles de singes et de chauve-souris observées et recueillies pendant le voyage dans l'intérieur du Brésil
  • J Spix
Spix, J. 1823. De Simarium et Vespertiliarum brasilienses species novae, ou histoire naturelle des espèces nouvelles de singes et de chauve-souris observées et recueillies pendant le voyage dans l'intérieur du Brésil. Monaco: Typis Francisci Seraphici Hübschmanni. viii + 72 pp.
Garbino APPENDIX Specimens examined Pithecia vanzolinii (n = 26) Acre: Community Passo da Pátria, Riozinho da Liberdade Extractive Reserve: MZUSP 35693 Amazonas: Santa Cruz, Rio Eirú: MZUSP 5491 (holotype of Pithecia vanzolinii), MZUSP 4160
  • Academic
  • S T Guilherme
Academic editor: Guilherme S. T. Garbino APPENDIX Specimens examined Pithecia vanzolinii (n = 26). Acre: Community Passo da Pátria, Riozinho da Liberdade Extractive Reserve: MZUSP 35693. Amazonas: Santa Cruz, Rio Eirú: MZUSP 5491 (holotype of Pithecia vanzolinii), MZUSP 4160, MZUSP 4161, MZUSP 4162, MZUSP 4980, MZUSP 4981, MZUSP 4982, MZUSP 4984, MZUSP 4985, MZUSP 4986, MZUSP 4987, MZUSP 5484, MZUSP 5485, MZUSP 5486, MZUSP 5487, MZUSP 5488, MZUSP 5489, MZUSP 5490, MZUSP 5492, MZUSP 5493, MZUSP 5494, MZUSP 5495, MZUSP 19684, MZUSP 19694, MZUSP 19695.
Pithecia vanzolinii. The IUCN Red List of threatened species 2015 Um viaje a pesquizas zoologicas hacia el Rio Jurúa
  • L K L M Marsh
  • A M Veiga
Marsh, L.K. & L.M. Veiga. 2015. Pithecia vanzolinii. The IUCN Red List of threatened species 2015. doi: 10.2305/iucn.uk.2015-1.rlts. t43946a70609944.en Olalla, A.M. 1937. Um viaje a pesquizas zoologicas hacia el Rio Jurúa [sic], Estado del Amazonas, Brasil — 1936. II. Notas de campo: Observaciones biológicas. Revista do Museu Paulista 23: 235–297.