Data/hora: 09/06/2024 09:26:21

Provedor de dados: | 42
País: | Brazil
Título: | A simplified table for staging embryos of the pipid frog  Pipa arrabali
Autores: | ARAÚJO,OLÍVIA G.S.; HADDAD,CÉLIO F.B.; SILVA,HÉLIO R. DA; PUGENER,LOURDES A.
Data: | 2016-01-01
Ano: | 2016
Palavras-chave: | Amphibia; Anura; Development; Morphology; Pipidae.
Resumo: | ABSTRACT Pipa is a Neotropical genus of frogs that dwell in freshwater environments. It includes four species that lack free-swimming larvae (P. aspera, P. arrabali, P. pipa, and P. snethlageae) and three with tadpoles (P. carvalhoi, P. myersi, and P. parva). Developmental tables such as the one proposed by Nieuwkoop and Faber might be useful for Pipa species with tadpoles. However, for the other Pipa species, to determine stages by this table or by any of the tables already prepared for frogs without tadpoles (e.g., Crinia nimbus, Eleutherodactylus coqui, and Oreobates barituensis) is impossible. By using embryonic, juvenile, and subadult specimens, we generated a staging table for P. arrabali, from the moment limb buds were first observed until birth, based on diagnostic features such as snout-vent length; growth, morphology, and reabsorption of the external tail; growth and differentiation of fore and hind limbs; development of intestine and vent tube; position of the angle of the mouth relative to nostrils and eyes; and color of preserved individuals. Based on these observations, we discuss some noteworthy traits (e.g., posture of hands and feet). We also compare the pattern of development of P. arrabali with that of other anuran species (with and without tadpoles).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501875
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201620150593
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.88 n.3 suppl.0 2016
Fonte: | info:eu-repo/semantics/openAccess