Results 51 to 60 of about 2,788 (258)

New species of Creagrutus (Ostariophysi; Characiformes; Characidae) from the Rio Xingu drainage, Brazil [PDF]

open access: yes, 2018
Netto-Ferreira, Andre L., Moreira, Cristiano R. (2018): New species of Creagrutus (Ostariophysi; Characiformes; Characidae) from the Rio Xingu drainage, Brazil. Zootaxa 4375 (2): 250-256, DOI: 10.11646/zootaxa.4375.2.
Netto-Ferreira, Andre L.   +1 more
core   +1 more source

Effects of intraspecific chemical cues on the behaviour of the bloodfin tetra Aphyocharax anisitsi (Ostariophysi: Characidae).

open access: yesBehavioural Processes, 2021
Chemical communication can induce a multitude of behaviours when detected by fish olfactory systems, from parental care, predation and alarm signalling, to foraging, schooling, reproduction, and migration.
S. Pintos   +4 more
semanticscholar   +1 more source

A new species of Leporinus Agassiz, 1829 from the upper Rio Paraná basin (Characiformes, Anostomidae) with redescription of L. elongatus Valenciennes, 1850 and L. obtusidens (Valenciennes, 1837)

open access: yesPapéis Avulsos de Zoologia, 2012
Leporinus obtusidens Valenciennes, 1837 and L. elongatus Valenciennes, 1850 are redescribed based on the type specimens, including those of their junior synonyms, and recently collected specimens.
Heraldo A. Britski   +2 more
doaj   +1 more source

New species of Rhyacoglanis (Siluriformes: Pseudopimelodidae) from rio Tocantins basin, northern Brazil

open access: yesNeotropical Ichthyology, 2021
A new species of Rhyacoglanis is described from the rapids of Jatobal, Pará State, Brazil. This species differs from the congeners by fusing hypurals 3, 4, and 5 (vs. hypural 5 free).
Oscar A. Shibatta   +2 more
doaj   +1 more source

FIGURE 2 in Redescription of Parotocinclus bahiensis (Miranda-Ribeiro, 1918) (Pisces, Ostariophysi, Loricariidae) [PDF]

open access: yes, 2009
FIGURE 2. Parotocinclus bahiensis trunk (drawing based on topotype cleared and stained 29.6 mm SL) showing the way of counting plates of longitudinal series.Published as part of Britski, Heraldo A.
Garavello, Julio Cesar (5208169)   +3 more
core   +1 more source

Description of a new species of Tatia from rio Tocantins drainage, central Brazil, with notes on Tatia simplex Mees, 1974 (Siluriformes, Auchenipteridae) [PDF]

open access: yesNeotropical Ichthyology, 2020
Tatia comprises twenty-five valid species, distributed in the main inland watersheds of South America, including the Orinoco, Essequibo, and coastal rivers of Suriname, Amazon, upper rio Paraná and São Francisco basins.
Jordson de Souza e Souza   +3 more
doaj   +1 more source

Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes)

open access: yesNeotropical Ichthyology, 2021
A good taxonomic assessment of specimens is an essential task to many biological studies and DNA data have provided additional sources of information to assist in the disentanglement of taxonomic problems among living organisms, as has been the case of ...
A. F. Nogueira   +3 more
semanticscholar   +1 more source

Cytological analysis of integumentary and muscular adaptations in three sand‐dwelling marine teleosts, Ammodytes tobianus (Ammodytidae), Gorgasia preclara (Congridae) and Heteroconger hassi (Congridae) (Teleostei; Actinopterygii)

open access: yesJournal of Fish Biology, Volume 97, Issue 4, Page 1097-1112, October 2020., 2020
Abstract Sandy bottoms are a ubiquitous environment found from sea bottoms to intertidal and freshwater zones. They are inhabited by many invertebrates and vertebrates which have developed morphological and physiological adaptations to sustain life under these particular conditions.
Jérôme Canei   +2 more
wiley   +1 more source

Astyanax vermilion and Astyanax burgerai: new characid fishes (Ostariophysi: Characiformes) from Northeastern Bahia, Brazil [PDF]

open access: yes, 2009
Zanata, Angela M., Camelier, Priscila (2009): Astyanax vermilion and Astyanax burgerai: new characid fishes (Ostariophysi: Characiformes) from Northeastern Bahia, Brazil.
Zanata, Angela M.   +2 more
core   +1 more source

Revision of the South American freshwater fish genus Laemolyta Cope, 1872 (Ostariophysi: Characiformes: Anostomidae) [PDF]

open access: yes, 2006
Fig. 7. Young specimen of Laemolyta fernandezi, MZUSP 20842, 63.6 mm SL; Brazil, Mato Grosso, rio Araguaia, Santa Terezinha.Published as part of Mautari, Kelly Cristina & Menezes, Naércio Aquino, 2006, Revision of the South American freshwater fish genus
Mautari, Kelly Cristina   +2 more
core   +1 more source

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