taxonID	type	description	language	source
03EA87ACFFADFFE769FE4B84A4BFFD15.taxon	materials_examined	Type locality: “ … Tucumán (localidad típica: Cerro San Javier, Dpto. Tafí Viejo) (aprox. 1000 m. de altura) … ” = Argentina, Tucumán, Tafí Viejo, Cerro San Javier (ca. - 26.78 º, - 65.37 º). Emended diagnosis. A member of the sigmodontine genus Oligoryzomys characterized by the following combination of characters: size large for the genus (HBL: 90 mm; CIL: 22.9, MTL: 3.9, BB: 12.1; all measurements in average); dorsal coloration orangish brown, with somewhat grizzled appearance; ventral hairs basally grey and whitish to ochraceous at the tip; ears short, rounded, and dark brown; tail longer than head and body and sharply bicolored; skull (Fig. 3) relatively robust, with a short and broad rostrum, well expanded zygomatic arches and a braincase inflated and broad; interorbital constriction narrow and hourglass shaped, with slightly defined supraorbital ridges; incisive foramina relatively long, posteriorly extended to the anterior border of M 1; karyotype with 2 n = 58, FN = 74.	en	Teta, Pablo, Jayat, J. Pablo, Ortiz, Pablo E., D’Elía, Guillermo (2013): The taxonomic status of Oligoryzomys brendae Massoia, 1998 (Rodentia, Cricetidae), with comments on the availability of this name. Zootaxa 3641 (4): 433-447, DOI: 10.11646/zootaxa.3641.4.9
03EA87ACFFADFFE769FE4B84A4BFFD15.taxon	distribution	Distribution. Oligoryzomys brendae is mainly found in forested and highland grassland environments of the Yungas between 700 and 2900 m elevation, from northernmost Salta province southward to Catamarca, Argentina. Additionally, we recently recorded the species further south in La Rioja province where it is restricted to isolated humid ravines at the ecotone between the xeric Chaco Seco and Monte desert formations. Jayat et al. (2011 b) cited a large species of Oligoryzomys for the Famatina range in La Rioja province; nevertheless, the specimens from Pampa de la Viuda reported here (see Appendix 2) constitute the first unequivocal mention of O. brendae for the province of La Rioja.	en	Teta, Pablo, Jayat, J. Pablo, Ortiz, Pablo E., D’Elía, Guillermo (2013): The taxonomic status of Oligoryzomys brendae Massoia, 1998 (Rodentia, Cricetidae), with comments on the availability of this name. Zootaxa 3641 (4): 433-447, DOI: 10.11646/zootaxa.3641.4.9
03EA87ACFFADFFE769FE4B84A4BFFD15.taxon	description	Description. Oligoryzomys brendae is a large-sized species within the genus (Figs. 3, 4; Table 1); its dorsal pelage is soft, and dense; individual hairs have gray bases and ochraceous to reddish tips, giving a general grizzled orangish-brown appearance, slightly darker at the head and midline and orangish towards the cheeks and flanks. Cover hairs are 10 to 12 mm long, being larger in the mid rump region; guard hairs are longer and darker, projecting 3 – 4 mm beyond the fur in the rump. Ventral hairs are basally grey and whitish to ochraceous at the tip. Ears are short, rounded, and dark brown in coloration; its inner surface is covered by short brown hairs with yellowish tips. Eyes are large and are surrounded by a conspicuous ring of dark brown hairs. Mystacial vibrissae are abundant and moderately long, reaching or slightly surpassing the base of the ear. Interamal and submental vibrissae are short and white. Fore and hindfoot are dorsally covered by short white hairs. Ungueal tuft are whitish and slightly larger than claws. The tail is longer than head and body and sharply bicolored, dark grey dorsally and whitish in the belly. The skull (Fig. 3) is relatively robust, with a short and broad rostrum, well expanded zygomatic arches and braincase inflated and broad. Nasals are slightly expanded in its distal third. The interorbital constriction is narrow and hourglass shaped, with slightly defined supraorbital ridges. Temporal and mastoid crests are scarcely developed. The zygomatic notches are wide and deep. The dorsal profile of the skull is nearly convex. Zygomatic plate is broad, with its anterior margin nearly straight and the upper root slightly slanted. Long and delicate hamular process separates a well developed postglenoid foramen from a small subsquamosal fenestra. Incisive foramina are relatively long, posteriorly extended to the anterior border of M 1. Mesopterygoid fossa is broad, with straight and slightly divergent lateral borders; its anterior margin is well behind the posterior plane defined by the M 3. Posterolateral palatal pits are rounded and large, located nearly the anterior border of the mesopterygoid fossa. Parapterygoid fossae are wide and relatively deep, with convex external borders. Auditory bullae are inflated and with relatively broad and long eustachian tubes. The associate foramina of the otic capsules and cephalic arterial patterns do not differ from the typical condition seen in other Oligoryzomys species and fully described by Carleton & Musser (1989). Both specimens lack alisphenoid strut, sphenofrontal foramen and the accompanying squamosalalisphenoid groove. The mandible is robust and comparatively deep. The masseteric crest is well developed, with their anterior end situated above the mental foramen and extending at the level or slightly beyond the anterior border of m 1. The capsular projection is strongly developed and situated below a shallow sigmoid notch. The coronoid process is comparatively broad and very short, extending slightly above the level of the condyle. The angular process is also heavily constructed and does not surpass posteriorly the level of the condyle. Upper incisors are ungrooved and opistodont, with orange enamel in its anterior surface. Molars are pentalophodont and brachyodont, with the lingual cusps slightly anterior to the labial ones; the anteromedian flexus is deep and defines prominent anterolingual and anterolabial conules; the anteroloph and parastyle are comparatively short and broad; the mesoloph and mesostyle are well developed and the posteroloph is near to metacone. The M 2 is nearly as a truncate oval and closely resembled M 1 except for the lack of a well developed procingulum. The M 3 is small and in both specimens it has a large inner enamel island. Procingulum and anterolabial cingulum on m 1 are well developed; anteromedian flexid is expressed only in young specimens. The anterolophid-metastylid and mesolophid-mesostylid are very short and the posterlophid is well developed. In the m 2 the procingulum is vestigial, the mesostylid is small and the posterolophid is well developed. The m 3 is large, reaching 50 % of the m 2, with anterolabial cingulum and ectostylid vestigial. Morphological comparisons. Our examination of the holotype and paratype of O. brendae and large series of Oligoryzomys from northwestern Argentina allow us to state that there are only one large-sized form of Oligoryzomys inhabiting forested and high altitudinal grasslands areas of northwestern Argentina. This species is Oligoryzomys brendae, which differs from the sympatric O. flavescens by its larger size, darker ears, absence of white hairs in chin and throat, broader rostrum, broader zygomatic notches and more expanded zygomatic arches.	en	Teta, Pablo, Jayat, J. Pablo, Ortiz, Pablo E., D’Elía, Guillermo (2013): The taxonomic status of Oligoryzomys brendae Massoia, 1998 (Rodentia, Cricetidae), with comments on the availability of this name. Zootaxa 3641 (4): 433-447, DOI: 10.11646/zootaxa.3641.4.9
