identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
02428795FFC93C0E87B8FAA5FBDFFC57.text	02428795FFC93C0E87B8FAA5FBDFFC57.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Neacomys marajoara Semedo & Silva & Gutiérrez & Ferreira & Nunes & Mendes-Oliveira & Farias & Rossi 2020	<div><p>Neacomys marajoara, new species</p> <p>Marajoara Spiny Mouse Figures 4, 7</p> <p>HOLOTYPE: The holotype (MPEG 40432) is an adult male (age class 3), collected on 19 January 2009, by R. V. Rossi (field number MAJ 23; fig. 4) in a pitfall trap. The specimen consists of a stuffed skin (missing the tip of the tail), skull, and skeleton; a tissue sample of this specimen is preserved in ethanol, and a partial cytochrome b sequence that we obtained from it has been deposited in Genbank with accession number MT 462070.</p> <p>TYPE LOCALITY: <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-50.183334&amp;materialsCitation.latitude=-0.65" title="Search Plazi for locations around (long -50.183334/lat -0.65)">Tauari Farm</a>, municipality of <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-50.183334&amp;materialsCitation.latitude=-0.65" title="Search Plazi for locations around (long -50.183334/lat -0.65)">Chaves</a>, Marajó Island, state of Pará, Brazil (0°39′S, 50°11′W, figs. 5, 6).</p> <p>DIAGNOSIS: Neacomys marajoara is a small species (table 3) that differs from congeneric taxa by the following combination of craniodental traits: skull delicate; interorbital region relatively broad; nasal bones straight anteriorly; supraorbital margins slightly convergent anteriorly; subsquamosal fenestra large (almost half the size of the postglenoid foramen on each side of the skull); paraoccipital processes separated from the auditory bullae; sphenopalatine foramen large; carotid circulation usually pattern 2 (sensu Voss, 1988); maxillary part of incisive septum (between the incisive foramina) narrow; M1 usually with flat and undivided anterocone; and M1 anteroloph usually fused with anterolabial conule.</p> <p>MORPHOLOGICAL DESCRIPTION: Dorsal pelage dark brown finely sprinkled with orange (fig. 4); ventral pelage varying from pure white to yellowish white, separated from the dorsal pelage by a very thin orange lateral line. Superciliary, genal, and mystacial vibrissae blackish and long (extending behind ears when laid back alongside the head); submental vibrissae absent; interramal vibrissae short and white. Ears small and rounded; postauricular hairs gray based with orange tips, forming an orange tuft behind each pinna. Ungual tufts white, longer than claws in most specimens examined (except MPEG 40435 and MPEG 40446, in which ungual tufts are as long as the claws); fore- and hind feet covered dorsally with buffy-cream hairs; hind feet narrow and elongate with small interdigital membranes present. Tail about the same length as head and body, bicolored, and covered by short, spiny, and clearly visible hairs; white hairs present on ventral caudal surface from base to midlength; tail tip with very short (1 mm) terminal tuft; caudal scales small, arranged in annular series; each caudal scale with three subequal hairs inserted along its posterior margin.</p> <p>Skull small and delicate in dorsal view (fig. 7), with straight anterior nasal margins, notably broad rostrum, and shallow zygomatic notches; posterior nasal terminus usually slightly pointed, extending beyond maxillary-frontal suture; premaxillaries terminating anterior to nasals; lacrimal bone small and visible in dorsal view, usually in broad contact with frontal bones; supraorbital margins slightly convergent anteriorly; interorbital region relatively broad; supraorbital beads developed as projecting shelves; lateral expansion of the parietal restricted to the dorsal cranial surface. Incisive foramina small and usually teardrop shaped, not extending posteriorly to level of M1s; maxillary portion of incisive septum (dividing the left and right foramina) narrow. Zygomatic plate narrow. Palate with two posterolateral pits on each side. Auditory bullae small and globular, with short and narrow eustachian tubes; periotic bone extends anteriorly to internal carotid canal (except MPEG 40435, MPEG 40443, and MPEG 40439, in which the periotic does not reach the internal carotid canal), but does not enter the canal. Subsquamosal fenestra large (almost half the size of the postglenoid foramen); hamular process of the squamosal long. Paraoccipital process narrow and small and separated from the auditory bullae. Sphenopalatine foramen large; alisphenoid strut absent; carotid circulation pattern usually derived 7 (pattern 2, as identified by the presence of a large stapedial foramen and a large posterior opening of the alisphenoid canal, and by the absence of a squamosalalisphenoid groove and a sphenofrontal foramen; Voss, 1988).</p> <p>First upper molar (M1) usually with broad, flat, and undivided anterocone; anteroloph usually fused with anterolabial conule (such that the anteroflexus is not distinguishable); M3 small; labial cusps (paracone and metacone) usually smaller than lingual cusps (protocone and hypocone); m1 anterocone undivided.</p> <p>Mandible with mental foramen opening laterally; capsular process of lower incisor alveolus present, but indistinct (reduced to a slight rounded elevation), approximately at same height as coronoid process.</p> <p>KARYOTYPES: Karyotypes of specimens from the type locality were obtained by Silva et al. (2015), and karyotypes from specimens collected elsewhere on Marajó Island were obtained by Oliveira da Silva et al. (2019), who described a chromosomal complement of 2 n = 58 and a fundamental number (FN) = 70 (table 5).</p> <p>7 Most specimens of Neacomys marajoara (seven out of nine) exhibit carotid circulation pattern 2, but one specimen (MPEG 40446) exhibits circulatory pattern 1, and another (MPEG 40431) exhibits both patterns (on opposite sides of the skull).</p> <p>TAXONOMIC COMPARISONS: Neacomys marajoara differs from N. dubosti in dorsal pelage color (dark brown finely sprinkled with orange versus light to dark brown finely sprinkled with orange in N. dubosti), and by its bicolored tail (the tail is usually unicolored in N. dubosti), narrower interorbital region, teardrop-shaped incisive foramina (the lateral margins of the incisive foramina are usually subparallel in N. dubosti), globular auditory bullae (the bullae are usually flask-shaped in N. dubosti), and carotid circulation usually pattern 2 (versus pattern 1 in N. dubosti).</p> <p>a We found variation in this character, please see Neacomys xingu description.</p> <p>b We found variation in this character, please see Neacomys marajoara description.</p> <p>Neacomys marajoara differs from N. xingu in dorsal pelage color (dark brown finely sprinkled with orange versus orange-brown sprinkled with black in N. xingu), and by its bicolored tail (the tail is usually unicolored in N. xingu), anteriorly straight (versus anteriorly expanded) nasal bones, broader interorbital region, narrower maxillary septum of the incisive foramina, larger subsquamosal fenestrae, and carotid circulation usually pattern 2 (versus usually pattern 1).</p> <p>Neacomys marajoara differs from N. vossi in dorsal pelage color (dark brown finely sprinkled with orange versus brown sprinkled with orange and/or black in N. vossi), and by its anteriorly straight (versus anteriorly expanded) nasal bones, broader interorbital region, paraoccipital processes separated from the auditory bullae (versus processes close to the auditory bullae), larger subsquamosal fenestrae, carotid circulation usually pattern 2 (versus pattern 1), and narrower maxillary septum of the incisive foramina.</p> <p>Karyotypically, Neacomys marajoara differs from other species in the Dubosti Group by having a diploid chromosomal complement of 58 (versus 2 n = 64 in N. dubosti; table 5), a uniquely large FN of 70 autosomal arms (versus FN = 64–68 in other group members), and submetacentric sex chromosomes (at least one of the sex chromosomes is acrocentric in N. dubosti and “species 2”).</p> <p>DISTRIBUTION: Neacomys marajoara has been recorded only on Marajó Island, state of Pará, Brazil (fig. 5).</p> <p>ETYMOLOGY: The specific epithet marajoara is to be treated as a noun in apposition. It is derived from Tupi Guarani (a language family that comprises many different indigenous Amazonian dialects) and denotes a native of Marajó Island (the type locality).</p> <p>FIELD NOTES: Of the nine specimens for which trapping information is available, eight were captured in pitfall traps and one was taken in a Sherman trap placed on the ground. One paratype (MPEG 40435) was pregnant with three fetuses.</p> <p>REMARKS: Neacomys marajoara was previously reported in the literature as “ Neacomys sp.” (in part) by Silva at al. (2015) and as “ Neacomys sp. D” by Oliveira da Silva et al. (2019).</p> </div>	http://treatment.plazi.org/id/02428795FFC93C0E87B8FAA5FBDFFC57	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Semedo, Thiago Borges Fernandes;Silva, Maria Nazareth Ferreira Da;Gutiérrez, Eliécer E.;Ferreira, Daniela Cristina;Nunes, Mario Da Silva;Mendes-Oliveira, Ana Cristina;Farias, Izeni Pires;Rossi, Rogério Vieira	Semedo, Thiago Borges Fernandes, Silva, Maria Nazareth Ferreira Da, Gutiérrez, Eliécer E., Ferreira, Daniela Cristina, Nunes, Mario Da Silva, Mendes-Oliveira, Ana Cristina, Farias, Izeni Pires, Rossi, Rogério Vieira (2020): Systematics of Neotropical Spiny Mice, Genus Neacomys Thomas, 1900 (Rodentia: Cricetidae), from Southeastern Amazonia, with Descriptions of Three New Species. American Museum Novitates 2020 (3958): 1-43, DOI: https://doi.org/10.1206/3958.1, URL: http://dx.doi.org/10.1206/3958.1
02428795FFC23C0A8794FB84FDB0FA16.text	02428795FFC23C0A8794FB84FDB0FA16.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Neacomys vossi Semedo & Silva & Gutiérrez & Ferreira & Nunes & Mendes-Oliveira & Farias & Rossi 2020	<div><p>Neacomys vossi, new species</p> <p>Voss’s Spiny Mouse Figures 8, 9</p> <p>HOLOTYPE: The holotype (UFPA 1583) is an adult female (age class 2) collected on 2 April 2013, by Ana Cristina Mendes Oliveira (original field number JB 031). The specimen consists of a stuffed skin, skull, and skeleton, all in good condition; additionally, a tissue sample is preserved in ethanol, and a partial cytochrome b sequence that we obtained from it has been deposited in Genbank with accession number MT 462028.</p> <p>TYPE LOCALITY: <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-56.933334&amp;materialsCitation.latitude=-5.233333" title="Search Plazi for locations around (long -56.933334/lat -5.233333)">Boca do Rato</a>, on the right bank of the <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-56.933334&amp;materialsCitation.latitude=-5.233333" title="Search Plazi for locations around (long -56.933334/lat -5.233333)">Rio Tapajós</a>, Itaituba municipality, state of Pará, Brazil (5°14′S, 56°56′W, fig. 5).</p> <p>DIAGNOSIS: Neacomys vossi is a small species (table 3) that differs from congeneric taxa by the following combination of craniodental traits: skull delicate; interorbital region narrow; nasal bones expanded anteriorly; supraorbital margins convergent anteriorly; subsquamosal fenestra usually small (about ¼ the size of the postglenoid foramen on each side of the skull); paroccipital processes close to the auditory bullae; sphenopalatine foramen large; carotid circulation pattern 1 (sensu Voss, 1988); maxillary part of incisive septum (between the incisive foramina) usually wide; M1 usually with slightly flat, narrow, and undivided anterocone; and M1 anteroloph usually distinct (not fused with the anterolabial conule).</p> <p>MORPHOLOGICAL DESCRIPTION: Dorsal pelage brown sprinkled with orange and/or black (fig. 8); ventral pelage varying from pure white to buffy white; very thin orange lateral line. Superciliary, genal, and mystacial vibrissae blackish and long (extending behind ears when laid back alongside the head); submental vibrissae absent; interramal vibrissae short and white. Ears small and rounded; post-auricular hairs gray-based with orange tips, forming an orange tuft behind each pinna. Ungual tufts white, longer than claws; fore- and hind feet covered dorsally with buffycream hairs; hind feet narrow and elongate with small interdigital membranes. Tail about the same length as head and body, usually slightly bicolored (except in UFPA 1277, 1417, 1444, 1654, and 1736 which have unicolored tail) and covered by spiny and clearly visible hairs; tail tip of the tail with very short (approximately 1.4 mm long) terminal tuft; caudal scales small, arranged in annular series; each caudal scale with three subequal hairs inserted along its posterior margin.</p> <p>Skull small and delicate in dorsal view (fig. 9); with expanded anterior nasal margins; notably broad rostrum and shallow zygomatic notches; posterior nasal terminus usually flat, extending beyond the maxillary-frontal suture; premaxillaries terminating slightly anterior to nasals; lacrimal bone small and visible in dorsal view, equally contacting maxillary and frontal bones; supraorbital margins convergent anteriorly; interorbital region narrow; supraorbital beads developed as projecting shelves; lateral expansion of the parietal restricted to the dorsal surface (except in UFPA 1227 and UFPA 1577, in which the parietal is slightly expanded ventrally near the squamosal root of the zygomatic arch). Incisive foramina small with subparallel lateral margins, not extending posteriorly to the level of M1s; maxillary portion of incisive septum (dividing the left and right foramina) usually wide. Zygomatic plate narrow. Palate with two posterolateral pits on each side of the palate. Auditory bullae small and globular, with short and narrow eustachian tubes; periotic bone extending anteriorly to internal carotid canal, but usually not entering into it (except in UFPA 1227, 1417, 1530, 1654, 1417, and 1736, in which the periotic does enter the internal carotid canal). Subsquamosal fenestra usually small (about ¼ the size of the postglenoid foramen); hamular process of the squamosal long. Paraoccipital process narrow, small, and close to the auditory bullae (Sánchez-Vendizú et al., 2018: fig. 3C). Sphenopalatine foramen large; alisphenoid strut absent; carotid circulation primitive (pattern 1, as identified by retaining a well-developed squamosal-alisphenoid groove and sphenofrontal foramen, both indicative of the presence of the supraorbital branch of the stapedial artery; Voss et al., 1988).</p> <p>First upper molar (M1) usually with slightly flat and undivided anterocone; anteroloph usually distinct (not fused with the anterolabial conule); M3 small; labial cusps (paracone, metacone) usually taller than lingual cusps (protocone, hypocone); m1 anteroconid undivided.</p> <p>Mandible with mental foramen opening laterally; capsular process of lower incisor alveolus present, but indistinct (reduced as a slight, rounded elevation), approximately at same height as coronoid process.</p> <p>TAXONOMIC COMPARISONS: Neacomys vossi differs from N. dubosti in dorsal pelage color (brown sprinkled with orange and/or black versus dark brown finely sprinkled with orange in N. dubosti), and by its narrower interorbital region, and globular auditory bullae (the bullae are usually flask shaped in N. dubosti).</p> <p>Neacomys vossi differs from N. xingu in dorsal pelage color (brown sprinkled with orange and/or black versus orange-brown sprinkled with black in N. xingu), larger sphenopalatine foramen, and an M1 anteroloph that is usually distinct (versus fused in N. xingu).</p> <p>Karyotypically, Neacomys vossi differs from other species in the Dubosti Group by having a diploid chromosome complement of 58 (versus 2 n = 64 in N. dubosti and 2 n = 64 in “species 2”), an FN of 68 autosomal arms (versus FN = 70 in N. marajoara, FN = 64 in N. xingu, and FN = 66 in “species 2”), and submetacentric sex chromosomes (at least one of the sex chromosomes is acrocentric in N. dubosti and “species 2”) DISTRIBUTION: Neacomys vossi has been collected on the right bank of the upper and middle Tapajós River and on the left bank of lower Xingu (fig. 5). According to our records, the species appears to be endemic to the Tapajós center of endemism (Silva et al., 2005). ETYMOLOGY: Named in honor of Robert S. Voss (fig. 10), curator of mammals at the American Museum of Natural History, New York, for his extensive contributions to our knowledge of Neotropical mammals, especially the taxonomy of Neacomys in northeastern Amazonia.</p> <p>.</p> <p>FIELD NOTES: Among the specimens we examined for which trapping information is available, all 17 were captured in pitfall traps, two (UFPA 1277 and 1284) in upland (terra firme) forests and three (UFPA 1444, 1487, and 1583) in primary forest of unknown character.</p> <p>REMARKS: Neacomys vossi was previously reported in the literature as “ Neacomys sp. A” by Oliveira da Silva et al. (2017, 2019).</p> </div>	http://treatment.plazi.org/id/02428795FFC23C0A8794FB84FDB0FA16	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Semedo, Thiago Borges Fernandes;Silva, Maria Nazareth Ferreira Da;Gutiérrez, Eliécer E.;Ferreira, Daniela Cristina;Nunes, Mario Da Silva;Mendes-Oliveira, Ana Cristina;Farias, Izeni Pires;Rossi, Rogério Vieira	Semedo, Thiago Borges Fernandes, Silva, Maria Nazareth Ferreira Da, Gutiérrez, Eliécer E., Ferreira, Daniela Cristina, Nunes, Mario Da Silva, Mendes-Oliveira, Ana Cristina, Farias, Izeni Pires, Rossi, Rogério Vieira (2020): Systematics of Neotropical Spiny Mice, Genus Neacomys Thomas, 1900 (Rodentia: Cricetidae), from Southeastern Amazonia, with Descriptions of Three New Species. American Museum Novitates 2020 (3958): 1-43, DOI: https://doi.org/10.1206/3958.1, URL: http://dx.doi.org/10.1206/3958.1
02428795FFC63C37879BFA45FB1EFA32.text	02428795FFC63C37879BFA45FB1EFA32.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Neacomys xingu Semedo & Silva & Gutiérrez & Ferreira & Nunes & Mendes-Oliveira & Farias & Rossi 2020	<div><p>Neacomys xingu, new species</p> <p>Xingu Spiny Mouse Figures 11, 12</p> <p>HOLOTYPE: The holotype (UFMT 1268) is an adult female (age class 5), collected on 28 August 2009 by Cleuton Lima Miranda (original field number PSA 242) in a pitfall trap. The specimen is preserved as a skin, skull, and skeleton in good condition; additionally, a tissue is preserved in alcohol, and a partial cytochrome b sequence that we obtained from it has been deposited in Genbank with accession number MT 462060.</p> <p>TYPE LOCALITY: <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-50.533333&amp;materialsCitation.latitude=-5.7666664" title="Search Plazi for locations around (long -50.533333/lat -5.7666664)">Flona Tapirapé-Aquiri</a>, Marabá, state of Pará, Brazil (5°46′S, 50°32′W, fig. 5).</p> <p>DIAGNOSIS: Neacomys xingu is a small species (table 3) that differs from congeneric taxa by the following combination of craniodental traits: skull delicate; interorbital region narrow; nasal bones expanded anteriorly; supraorbital margins convergent anteriorly; subsquamosal fenestra small (about ¼ the size of the postglenoid foramen on each side of the skull); paraoccipital process separated from the auditory bullae; sphenopalatine foramen small; carotid circulation usually pattern 1 (sensu Voss, 1988); maxillary part of incisive septum (between the incisive foramina) wide; M1 usually with flat and undivided anterocone; and M1 anteroloph fused with the anterolabial conule.</p> <p>MORPHOLOGICAL DESCRIPTION: Dorsal pelage orange-brown, sprinkled with black (fig. 11); ventral pelage varying from pure white to buffy white and separated from the dorsal pelage by a thin orange lateral line. Superciliary, genal, and mystacial vibrissae blackish and long (extending behind ears when laid back alongside the head); submental vibrissae absent; interramal vibrissae short and white; Ears small and rounded; postauricular hairs gray based with orange tips, forming an orange tuft behind each pinna. Ungual tufts white, longer than claws in length; fore- and hind feet covered dorsally with buffy-cream hairs; hind feet narrow and elongate with small interdigital membranes present. Tail about the same length as head and body, usually unicolored (except in PSA 069, MPEG 39901, and MPEG 42019, in which the tail is dark above and paler below), and covered by short, spiny, and clearly visible hairs; tail tip with very short (1–2 mm) terminal tuft; caudal scales small, arranged in annular series; each caudal scale with three subequal hairs inserted along its posterior margin.</p> <p>Skull small and delicate in dorsal view (fig. 12); with anteriorly expanded nasal margins; notably broad rostrum and shallow zygomatic notches; posterior nasal terminus slightly pointed, extending beyond the maxillary-frontal suture; premaxillaries terminating slightly anterior to nasals; lacrimal bone small and visible in dorsal view, equally contacting the maxillary and frontal bones; supraorbital margins convergent anteriorly; interorbital region narrow; supraorbital beads developed as projecting shelves; lateral expansion of the parietal restricted to the dorsal cranial surface (except in MCN-M 1404 and MPEG 39901, in which the parietal is slightly expanded ventrally near the squamosal root of the zygomatic arch). Incisive foramina small with subparallel lateral margins, not extending posteriorly to level of M1s; maxillary portion of incisive septum (dividing the left and right foramina) usually wide. Zygomatic plate varying from broad to narrow. Palate with two posterolateral pits on each side. Auditory bullae small and usually globular, with short and narrow eustachian tubes; periotic bone extends anteriorly to the internal carotid canal but does not enter it (except in MPEG 42715 and MCN-M 1404, in which the periotic does not reach the internal carotid canal). Subsquamosal fenestra small (about ¼ the size of the postglenoid foramen); hamular process of the squamosal long. Paraoccipital process narrow and small and usually separated from the auditory bullae (Sánchez-Vendizú et al., 2018: fig. 3C). Sphenopalatine foramen small (except in MPEG 41991, whose sphenopalatine foramen is large); alisphenoid strut absent; carotid circulation pattern usually primitive 8 (pattern 1, as identified by retaining a well-developed squamosal-alisphenoid groove and sphenofrontal foramen, both indicative of the presence of the supraorbital branch of the stapedial artery; Voss, 1988: fig. 18A, B).</p> <p>First upper molar (M1) usually with slightly flat and undivided anterocone; anteroloph usually fused with the anterolabial conule (such that the anteroflexus is not distinguishable); M3 small; labial cusps (paracone, metacone) usually taller than lingual cusps (protocone, hypocone); m1 anteroconid undivided.</p> <p>Mandible with mental foramen opening laterally; capsular process of lower incisor alveolus present, but indistinct (reduced to a slight rounded elevation), approximately at same height of coronoid process.</p> <p>TAXONOMIC COMPARISONS: Neacomys xingu differs from N. dubosti in dorsal pelage color (orange-brown sprinkled with black versus light to dark brown finely sprinkled with orange), and by its narrower interorbital region, globular auditory bullae (the bullae are usually flask shaped in N. dubosti), and carotid circulation usually pattern 1 (versus always pattern 1 in N. dubosti).</p> <p>Karyotypically, Neacomys xingu differs from all other members of the Dubosti Group by having a diploid chromosomal complement of 58 (versus 2 n = 64 in N. dubosti and 2 n = 54 in “species 2”), a uniquely small FN of 64 autosomal arms (versus FN = 66– 60 in other species), and submetacentric sex chromosomes (at least one sex chromosome is acrocentric in N. dubosti and “species 2”).</p> <p>DISTRIBUTION: Neacomys xingu has been collected on the right bank of the lower Xingu River and in the region of Serra de Carajás, in southeastern Pará state (fig. 5). According to cytogenetic data (Di-Nizo et al., 2017; Oliveira da Silva et al., 2019), the species also ranges southward into Vila Rica in northeastern Mato Grosso state. These records suggest that the species is restricted to the Xingu center of endemism (Silva et al., 2005).</p> <p>ETYMOLOGY: The specific epithet xingu is to be treated as a noun in apposition. The species name refers to the Xingu center of endemism, delimited by the Xingu and Tapajós rivers, where the species occurs.</p> <p>REMARKS: Neacomys xingu was previously reported in the literature as “ Neacomys clade 7” by Patton et al. (2000), “ Neacomys sp.” (in part) by Silva at al. (2015), “ Neacomys sp.” by Di-Nizo et al. (2017) and Brandão et al. (2019), and “ Neacomys sp. C” by Oliveira da Silva et al. (2019).</p> </div>	http://treatment.plazi.org/id/02428795FFC63C37879BFA45FB1EFA32	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Semedo, Thiago Borges Fernandes;Silva, Maria Nazareth Ferreira Da;Gutiérrez, Eliécer E.;Ferreira, Daniela Cristina;Nunes, Mario Da Silva;Mendes-Oliveira, Ana Cristina;Farias, Izeni Pires;Rossi, Rogério Vieira	Semedo, Thiago Borges Fernandes, Silva, Maria Nazareth Ferreira Da, Gutiérrez, Eliécer E., Ferreira, Daniela Cristina, Nunes, Mario Da Silva, Mendes-Oliveira, Ana Cristina, Farias, Izeni Pires, Rossi, Rogério Vieira (2020): Systematics of Neotropical Spiny Mice, Genus Neacomys Thomas, 1900 (Rodentia: Cricetidae), from Southeastern Amazonia, with Descriptions of Three New Species. American Museum Novitates 2020 (3958): 1-43, DOI: https://doi.org/10.1206/3958.1, URL: http://dx.doi.org/10.1206/3958.1
