Etymology Altus: from the Latin altus, meaning ‘high, deep’. Classification Order: Characiformes Family: Acestrorhynchidae Distribution The type locality of this species is situated at Rio Arari, in Cachoeira do Arari, which is located in the Ilha de Marajó region of Pará State, Brazil. Initially, it was believed that this species was also present in the lower Parana and […]
Etymology Pantaneiro: ‘of the Pantanal’, in reference to the large tropical wetland in Brazil. Classification Order: Characiformes Family: Acestrorhynchidae Distribution The type locality of this species is situated at a tributary of Rio dos Marmelos, which is located in the Rio Madeira basin, approximately 110 kilometers to the east of Humaitá along rodovia Transamazônica, in the Amazonas […]
Synonyms Hydrocyon microlepis Jardine, 1841; Acestrorhynchus cachorro Fowler, 1940; Acestrorhynchus guianensis Menezes, 1969; Acestrorhynchus apurensis Toledo-Piza & Menezes, 1996 Etymology microlepis: from the Greek mikros, meaning ‘small’, and lepis, meaning ‘scale’. Classification Order: Characiformes Family: Acestrorhynchidae Distribution The species is widely distributed across the northern drainages of the Amazon in Peru, Ecuador, and Brazil, as well as in the Río Orinoco in Venezuela, and various coastal […]
Etymology isalineae: named for Mrs. Isaline Drecq, wife of Mr. Guy van den Bossche, a participant in the expedition on which the species was discovered. Classification Order: Characiformes Family: Acestrorhynchidae Distribution The specimens that were used to describe the species, known as the type series, were gathered from a specific location in the western Brazilian Amazon, which […]
Synonyms Salmo falcatus Bloch, 1794; Salmo pulverulentus Linnaeus, 1758; Xiphorhamphus ferox Günther, 1863 Etymology The species name ‘falcatus’ is derived from the Latin word ‘falcatus’, which means ‘sickle-shaped’. It is believed that this name refers to the unique shape of the caudal fin of the fish, which resembles the curved blade of a sickle. This distinctive caudal fin, […]
Wrasses, 114, 115 Xenomysrus nigri (African knifefish), 97 Xenopoecilus, 56 Xiphophorus (platy), 48 Xiphophorus (swordtail), 48 Xiphophorus hdleri (swordtail), 48, 50, 51 Xiphophorus maculatus (platy), 48, 50 Xiphophorus vdriatus (platy), 48, 51 Zebrasoma flavescens (yellow tang), 113 Zebrasoma vdiferum (striped sailfin tang), 113
In these regions cichlids are not the dominant predators and are rarely found in open water (where they would be easy prey for other fishes, birds, and reptiles) ; instead they occupy the margins of permanent bodies of water – lakes, rivers, and streams – where they can shelter among overhanging vegetation, roots, and fallen trees. Some are found beneath floating islands of plant debris. Most prefer still or slow-moving water, and do not appreciate bright lighting.