Xenarthra 24

December 2023

Cover of Xenarthra 24: group of male screaming hairy armadillos (Chaetophractus vellerosus) chasing after a female during reproductive season. Photo: Sebastián Preisz.

Cover: group of male screaming hairy armadillos (Chaetophractus vellerosus) chasing after a female during reproductive season. Photo by Sebastián Preisz.

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En esta nota presentamos dos nuevas localidades en Argentina para uno de los armadillos menos conocidos del mundo, el pichiciego mayor (Calyptophractus retusus). Una localidad corresponde a la provincia de Formosa, departamento Patiño, Campo Las Delicias, y la otra a Salta, departamento Orán, Parque Provincial Los Palmares. A su vez discutimos la validez de la localidad tipo de la subespecie C. r. clorindae «Tapia, en la gobernación de Formosa (Argentina)», la cual fue imposible ubicar.


Chacoan fairy armadillo, Calyptophractus retusus (Desmarest, 1863), new information on its distribution in Argentina. In this note we present two new localities in Argentina for one of the least known armadillos in the world, the greater fairy armadillo (Calyptophractus retusus). One locality is in Formosa province, Patiño department, Campo Las Delicias, and the other in Salta, Orán department, Parque Provincial Los Palmares. In addition, we discuss the validity of the type locality of the subspecies C. r. clorindae “Tapia, in the governorate of Formosa (Argentina)”, which was impossible to locate.

Short CommunicationEjemplar de Calyptophractus retusus en el Parque Provincial Los Palmares, departamento Orán, Salta, Argentina. Fotos: Nicéforo Luna.Pichiciego mayor, Calyptophractus retusus (Desmarest, 1863), nuevos datos de su distribución en ArgentinaSebastián Cirignoli, Nicéforo Luna, Agustín M. Abba10.2305/KUKD5239e2403

This article provides an update of the distribution of the Xenarthra fauna of Paraguay. Tamandua tetradactyla is confirmed to occur in all Paraguayan departments. New departmental records of Myrmecophaga tridactyla are reported for Ñeembucú, Paraguarí, and San Pedro. Dasypus novemcinctus is reported for Ñeembucú department for the first time. Two previous species (Dasypus hybridus and Cabassous tatouay) considered to occur in Ñeembucú department based on specimens in the Basel Natural History Museum are now considered doubtful. A public interest in reports of Myrmecophagidae in Paraguay is noted and it is suggested that it could be utilized to benefit the conservation of these species in the Oriental region, where both species are rarely encountered.


Nuevos registros de Xenarthra de Paraguay con una revisión de las especies presentes en el departamento de Ñeembucú. Este artículo brinda una actualización de la distribución conocida de la fauna de xenartros del Paraguay. Tamandua tetradactyla es confirmado como presente en todos los departamentos del país. Se reportan nuevos registros departamentales de Myrmecophaga tridactyla para Ñeembucú, Paraguarí y San Pedro. Dasypus novemcinctus es reportado del departamento de Ñeembucú por primera vez. Dos especies (Dasypus hybridus y Cabassous tatouay), previamente consideradas como de ocurrencia en Ñeembucú en base a ejemplares del Museo de Historia Natural de Basilea, ahora se consideran dudosas para el área. Se nota un interés del público en reportes de Myrmecophagidae en Paraguay y se sugiere que puede ser utilizado para beneficiar la conservación de estas especies en la Región Oriental del Paraguay, donde ambas especies son raramente encontradas.

Short CommunicationMyrmecophaga tridactyla specimen at Desmochados, Ñeembucú department, Paraguay, on 14 June 2023. Photo: Félix Barrios.New Paraguayan records of Xenarthra with a review of the species present in Ñeembucú departmentPaul Smith, Jorge Ayala, Rebecca L. Smith, Barry Cronin, Félix Barrios, Héctor Narváez, Olivia Zickgraf, Juan José Resquín, Claudio Fuentes Armadans, Sergio D. Ríos10.2305/MMSH5644e2401

El armadillo peludo de nariz larga (Dasypus pilosus) es el menos conocido de las cinco especies de armadillo reportadas para el Perú. Es endémico de los bosques montanos del noreste del nombrado país. Durante un inventario de fauna del Parque Nacional Río Abiseo se colectaron ocho especímenes de este armadillo en bosque montano y bosque montano bajo. Los contenidos estomacales examinados muestran que es un insectívoro oportunista que se alimenta mayormente de larvas que viven bajo tierra o conformando colonias. Las especies más consumidas son adultos y larvas de himenópteros, lepidópteros y coleópteros. Adicionalmente, se revisaron registros previos de la especie. El análisis de los mismos sugiere que D. pilosus puede usar los pastizales vecinos al borde del bosque y aquellos en la jalca, y que está presente en áreas de conservación de San Martín, Amazonas y Cajamarca. Para la conservación efectiva de D. pilosus se requiere ampliar el conocimiento sobre los aspectos básicos de su biología y ecología.


Contributions to the knowledge of the hairy long-nosed armadillo (Dasypus pilosus). The hairy long-nosed armadillo (Dasypus pilosus) is the least known of the five armadillo species reported for Peru. This species is endemic to the montane forests of northeastern Peru. During a wildlife inventory in Río Abiseo National Park, eight specimens were collected in montane forest or low montane forest. Stomach content analyses show that they are opportunistic insectivores that feed mainly on larvae living underground or forming colonies. The most commonly consumed species (adults and larvae) were hymenopterans, lepidopterans, and coleopterans. In addition, previous species records were reviewed. Their analysis suggests that D. pilosus may use grasslands near the forest edge and those in the jalca, and that it is present in conservation areas of San Martín, Amazonas and Cajamarca. Effective conservation of D. pilosus requires a better understanding of the basic aspects of its biology and ecology.

Short CommunicationEspécimen de Dasypus pilosus fotografiado en el Parque Nacional Río Abiseo, Perú. Foto: Andre Baertschi.Aportes al conocimiento del armadillo peludo de nariz larga (Dasypus pilosus)Mariella Leo10.2305/MJNY8822e2402

Existem poucos relatos na literatura sobre os cuidados neonatais de tatus órfãos sob cuidados humanos. O presente caso objetiva relatar a criação artificial e o desenvolvimento de um tatu-de-rabo-mole-grande (Cabassous tatouay) durante um ano, recebido ainda de olhos fechados no Zoológico de Sorocaba, São Paulo, Brasil. Inicialmente, o animal era alimentado com sucedâneo de leite de cão e o desmame ocorreu após dois meses da sua chegada. Após este período, iniciou-se a transição para alimentação sólida, constituída de ração de cão, ovos e frutas. Durante o processo, seu crescimento foi acompanhado através de pesagens periódicas. O bom estado de saúde do animal comprova que os cuidados neonatais se mostraram adequados para o desenvolvimento de um C. tatouay.


Neonatal and pediatric care of a greater naked-tailed armadillo (Cabassous tatouay). There are few reports in literature on the neonatal care of orphaned armadillos under human care. The present note aims to report the hand-rearing, growth, and development of a greater naked-tailed armadillo (Cabassous tatouay) during one year. The animal was received with its eyes still closed at Sorocaba Zoo, São Paulo, Brazil. For the first two months, it was fed dog’s milk formula. Then, the transition to solid food began, which consisted of dog food, eggs, and fruits. During the process, its growth was monitored through periodic weighing. The animal’s good health shows that neonatal care was adequate for the development of C. tatouay.

Short CommunicationEvolução do peso aferido mensalmente de um tatu-de-rabo-mole-grande (Cabassous tatouay) durante um ano, recebido ainda de olhos fechados no Zoológico de Sorocaba, São Paulo, BrasilCuidados neonatais e pediátricos de um tatu-de-rabo-mole-grande (Cabassous tatouay)Flora Nogueira Matos, Cássia Regina Ramos Gonzaga, Shamira de Fátima Sallum Leandro, Marina Alvarado Medeiros, André Luiz Mota da Costa, Mariana Castilho Martins, Rodrigo Hidalgo Friciello Teixeira10.2305/DVYF3355e2404

We monitored a stretch of the BR-050 highway in the State of Goiás that crosses several natural environments used by the giant armadillo, a peculiar and endangered species whose survival is threatened by vehicle collisions. Here, we present the record of highway underpass use by Priodontes maximus in a fragmented Cerrado landscape in Ipameri, Goiás. The finding confirms the use of highway underpasses by the giant armadillo and highlights that these structures should be promoted at points where P. maximus occurs in the habitats isolated by the BR-050.


Priodontes maximus (Cingulata: Chlamyphoridae) usando passagens subterrâneas em uma paisagem fragmentada de Cerrado do leste do estado de Goiás, Brasil central. O trecho monitorado da rodovia BR-050 no Estado de Goiás atravessa vários ambientes naturais do tatu-canastra, espécie peculiar e ameaçada de extinção, que têm os atropelamentos em rodovias como um dos impactos para a sua sobrevivência. Aqui, nós apresentamos um registro de uso de passagem subterrânea por um indivíduo de P. maximus em uma paisagem fragmentada do Cerrado em Ipameri, Goiás. O achado confirma o uso de passagens subterrâneas de rodovias pelo tatu-canastra e destaca que essas estruturas devem ser promovidas em pontos de ocorrência de P. maximus nos habitats isolados pela BR-050.

Short CommunicationGiant armadillo (Priodontes maximus) using a highway underpass in a fragmented Cerrado landscape in Ipameri, Goiás, BrazilPriodontes maximus (Cingulata: Chlamyphoridae) using a highway wildlife underpass in a fragmented Cerrado landscape from Eastern Goiás State, central BrazilMarcelo Okamura Arasaki, Renan Campos de Oliveira, Eduardo Issberner Panachão, Rodrigo de Brito Barbosa, Thales Flores Lizarelli10.2305/KERI8510e2405

Cite this article as: . 2024. Xenarthra 24. . . https://doi.org/