Data/hora: 11/06/2024 02:17:00

Provedor de dados: | Neotropical Ichthyology
País: | Brazil
Título: | A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data
Autores: | Ferreira,Katiane M.; Menezes,Naércio A.; Quagio-Grassioto,Irani.
Data: | 2011-06-01
Ano: | 2011
Palavras-chave: | Glandulocaudinae; Lepidocharax; Phylogeny; Spermatozoa.
Resumo: | Lepidocharax, new genus, and Lepidocharax diamantina and L. burnsi new species from eastern Brazil are described herein. Lepidocharax is considered a monophyletic genus of the Stevardiinae and can be distinguished from the other members of this subfamily except Planaltina, Pseudocorynopoma, and Xenurobrycon by having the dorsal-fin origin vertically aligned with the anal-fin origin, vs. dorsal fin origin anterior or posterior to anal-fin origin. Additionally the new genus can be distinguished from those three genera by not having the scales extending over the ventral caudal-fin lobe modified to form the dorsal border of the pheromone pouch organ or to represent a pouch scale in sexually mature males. In this paper, we describe these two recently discovered species and the ultrastructure of their spermatozoa.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200005
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/S1679-62252011000200005
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.9 n.2 2011
Fonte: | info:eu-repo/semantics/openAccess