Consulta: subjectFacets:"Peripatidae"
Registros recuperados: 2
Data/hora: 09/06/2024 04:24:06

Molecular analyses reveal the occurrence of three new sympatric lineages of velvet worms (Onychophora: Peripatidae) in the eastern Amazon basin
Provedor de dados: 74
Autores: Cunha,Williana T. R.; Santos,Rita C. O.; Araripe,Juliana; Sampaio,Iracilda; Schneider,Horacio; Rêgo,Péricles S.
Abstract In the present study, we investigated the possible existence of new lineages of peripatids through comparisons between known Neotropical species and specimens obtained from two locations in Pará, a state in eastern Brazilian Amazonia using a molecular approach based on sequences of the mtDNA genes COI, 16Sr RNA, and 18S RNA. The analyses included also sequences of Asian and African taxa for a more systematic understanding of the phylogenetic relationships within the group. The analysis of the COI, 16S rRNA and 18S RNA sequences permitted the identification of three distinct lineages (A, B and C) based on two different phylogenetic approaches (Bayesian methods and ML). The three lineages presented here are completely distinct from all other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonia; New lineages; Peripatidae; Phylogeny; Onychophora.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100147

Brazilian species of Onychophora with notes on their taxonomy and distribution
Provedor de dados: 103
Autores: Sampaio-Costa,Cristiano; Chagas-Junior,Amazonas; Baptista,Renner L. C.
A revision of the currently known distribution of Onychophora (velvet worms) in Brazil is presented. Twenty-four morphospecies (half of them undescribed) belonging to four genera of the Peripatidae (Peripatus Guilding, 1826, Epiperipatus Clark, 1913, Macroperipatus Clark, 1913 and Oroperipatus Cockerell, 1908) are recorded. This high number of "unidentified" morphospecies is due to three major reasons: the poor quality of the characters used in species-level identification, the inadequate specimen conservation in ethanol, and, in most cases, the lack of additional specimens for analysis of intra- and inter-specific variation. The morphological characters currently used to separate Peripatidae species present a large degree of variation and may not be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Distribution; Peripatidae; Taxonomy; Velvet worm.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300020