Results 71 to 80 of about 2,788 (258)

Comparative Mitochondrial Features Across Characiformes (Teleostei: Ostariophysi) and Mitogenomic Architecture of Nematobrycon lacortei

Diversity
Characiformes, a highly diverse group, are of great economic and ecological significance; however, their complex morphological convergence and adaptive radiation pose challenges to taxonomy, and phylogenetic controversies remain.
Hongjian Chen, Wei Xu, Bing Liu, Lingna Li   +3 more
semanticscholar   +1 more source

A reassessment of the phylogenetic position of the family Cobitidae (ostariophysi) [PDF]

, 1983
PhDThe m. adductor mandibulae of members of the Cobitidae and of representatives of other ostariophysean taxa is dissected and a cladistic analysis of the muscle characters is carried out.
Parshall, Alice Margret, Parshall, A.M.
core  

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

Integrative Zoology, EarlyView.
We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao, Suying Ma, Shiyi Zhang, Fan Bai, Lingyao Gan, Wenjing Tao, Feilong Wang, Deshou Wang, Lina Sun   +8 more
wiley   +1 more source

A new Hyphessobrycon (Characiformes: Acestrorhamphidae) of the Hyphessobrycon agulha lineage of Hyphessobryconinae from the lower Aripuanã basin, Brazil, with comments about the lineage

Journal of Fish Biology, EarlyView.
Abstract A new species of Hyphessobrycon is described from a tributary of Rio Jatuarana, lower Rio Aripuanã basin, Rio Madeira basin, Apuí, Amazonas. The new species is part of the Hyphessobrycon agulha lineage, with the typical midlateral narrow black stripe immediately followed dorsally by an iridescent stripe.
Tiago C. Faria, Willian M. Ohara, Iann Leonardo Pinheiro Monteiro, Claudio Oliveira   +3 more
wiley   +1 more source

Fig. 1 in A new species of the lowland Oligosarcus Günther species group (Teleostei: Ostariophysi: Characidae) [PDF]

, 2015
Fig. 1. Oligosarcus varii, holotype, MCP 31148, female, 184 mm SL, Brazil, Rio Grande do Sul, São Marcos, rio Jacuí basin.Published as part of Menezes, Naércio Aquino & Ribeiro, Alexandre Cunha, 2015, A new species of the lowland Oligosarcus Günther ...
Menezes, Naércio Aquino, Ribeiro, Alexandre Cunha   +1 more
core   +1 more source

A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil

Neotropical Ichthyology
A new species of Brachychalcinus is described from the rio Mapaoni, rio Jari basin, and the coastal rio Araguari, Amapá and Pará states, Brazil. The new species is distinguished from all congeners, except B.
J. Garcia-Ayala, F. Lima, C. Gama, R. C. Benine   +3 more
semanticscholar   +1 more source

Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis

Neotropical Ichthyology
The skeletal muscles of the dorsolateral region of the head of the Nematogenyidae and representatives of the all major clades of the Trichomycteridae are described and illustrated.
Aléssio Datovo, Flávio Alicino Bockmann   +1 more
doaj   +1 more source

Revalidation and redescription of Steindachnerina nigrotaenia and redescription of S. insculpta (Characiformes: Curimatidae)

Neotropical Ichthyology, 2019
Steindachnerina nigrotaenia is resurrected from the synonym of S. brevipinna and considered a valid species. The previous designation of the lectotype of S. nigrotaenia is considered invalid and a new lectotype is designated herein.
Heraldo A. Britski, Bruno F. Melo, Richard P. Vari, Claudio Oliveira   +3 more
doaj   +1 more source

Ossification of the cranium of Inpaichthys kerri (Characiformes: Acestrorhamphidae) with discussion of paedomorphic traits in the genus

Journal of Anatomy, Volume 248, Issue 5, Page 806-829, May 2026.
In this study, we present a detailed description of the cranial development of Inpaichthys kerri (Characiformes: Acestrorhamphidae), highlighting important topics such as pedomorphic characters and their relationship with ontogeny and phylogeny, as well as ossification sequences unique to the species. Abstract The study of development provides valuable
Yasmim De Santana Santos, Manoela M. F. Marinho   +1 more
wiley   +1 more source

A new species of Bryconops (Ostariophysi: Characiformes: Characidae) from the upper rio Tocantins drainage, Brazil [PDF]

, 2016
Fig. 4. Bryconops tocantinensis, female, live specimen, rio Conceição, upper rio Tocantins drainage, Tocantins, Brazil.Published as part of Guedes, Tharles L. O., Oliveira, Everton F. & Lucinda, Paulo H. F., 2016, A new species of Bryconops (Ostariophysi:
Oliveira, Everton F., Guedes, Tharles L. O., Lucinda, Paulo H. F.   +2 more
core   +1 more source