Cytogenetic analyses in Trinomys (Echimyidae, Rodentia), with description of new karyotypes [PDF]
Trinomys Thomas (1921) is a terrestrial genus of spiny rats endemic to the Brazilian areas of Atlantic Forest and the transitional areas of Cerrado and Caatinga. Although most species have been already karyotyped, the available cytogenetic information is
Naiara Pereira Araújo +3 more
doaj +6 more sources
A new Echimyidae (Mammalia, Rodentia) host of Amblyomma ovale Koch, 1844 in the eastern Brazilian Amazon, and a pathogen survey [PDF]
The genus Amblyomma has the largest number of tick species in the Neotropical region. Amblyomma ovale displays high ecological plasticity and can be found in different habitats and a variety of vertebrate hosts.
Darlison Chagas-de-Souza +6 more
doaj +3 more sources
Esqueletogênese em punaré (Thrichomys laurentinus- Rodentia, Echimyidae) [PDF]
Resumo: O objetivo deste estudo foi descrever o desenvolvimento do esqueleto do punaré (Thrichomys laurentinus). Para tanto, foram utilizados 11 embriões e 12 fetos em diferentes estágios de desenvolvimento, sendo divididos em 4 grupos de acordo com o ...
Phelipe O. Favaron +5 more
doaj +4 more sources
New karyotype records for the genus Proechimys (Rodentia: Echimyidae) from Brazilian Amazonia [PDF]
We present new karyotype records for six Proechimys species from the Brazilian Amazon. P. echinothrix from the region of Purus River had 2n = 32 chromosomes and a FN = 58, while P. cuvieri from the region of the Japurá River presented 2n = 28 and FN = 46.
Eduardo Schmidt Eler +3 more
doaj +7 more sources
Caviomorph rodents from the Pampean region (Argentina) in the historical Santiago Roth Collection in Switzerland [PDF]
Here I reviewed the Pleistocene caviomorphs collected by Santiago Roth (collection from Catalog No. 5) and housed at the paleontological collection of the Paläontologisches Institut und Museum, Universität Zürich, Zurich (Switzerland).
Leonardo Kerber
doaj +2 more sources
Spirura carajaensis n. sp. (Nematoda: Spiruridae), parasite of Proechimys roberti Thomas 1901 (Rodentia: Echimyidae) from Brazilian Amazon [PDF]
A new species of nematode, from the family Spiruridae, is described using parasites from the esophageal mucosa of Proechimys roberti (Rodentia: Echimyidae), which were obtained during a fauna survey in the Tapirapé-Aquirí National Forest, Carajás Reserve,
Cordeiro H. da Costa +3 more
doaj +2 more sources
A new species of Echimys Cuvier, 1809 (Rodentia, Echimyidae) from Brazil [PDF]
Here we describe a new species of Echimyidae Amazonian rodent, Echimys vieirai sp. nov., based on two individuals from the south bank of Amazon river between the lower Madeira river to the right bank of the Tapajós, respectively in the Brazilian states ...
Gilson Evaristo Iack-Ximenes +2 more
doaj +2 more sources
Karyotypic analyses and morphological comments on the endemic and endangered Brazilian painted tree rat Callistomys pictus (Rodentia, Echimyidae) [PDF]
The genus Callistomys belongs to the rodent family Echimyidae, subfamily Echimyinae, and its only living representative is Callistomys pictus, a rare and vulnerable endemic species of the state of Bahia, Brazil. Callistomys has been previously classified
Karen Ventura +5 more
doaj +2 more sources
Molecular survey of Bartonella spp., Ehrlichia spp., Anaplasma spp. and hemoplasmas in small synanthropic mammals in urban areas of Brazil’s northern Amazon region [PDF]
Representatives of the families Didelphidae, Echimyidae, Cricetidae, and Muridae have been identified as significant reservoirs or amplifiers of zoonotic agents. This study aimed to investigate the molecular occurrence of Bartonella spp., Ehrlichia spp.,
Darlison Chagas-de-Souza +7 more
doaj +2 more sources
First cytogenetic information for Lonchothrix emiliae and taxonomic implications for the genus taxa Lonchothrix + Mesomys (Rodentia, Echimyidae, Eumysopinae). [PDF]
The taxonomic identification of Lonchothrix emiliae (Rodentia, Echimyidae, Eumysopinae) is problematic because of the overlap of morphological characters with its sister clade represented by species in the genus Mesomys which, like L.
Leony Dias de Oliveira +5 more
doaj +2 more sources

