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New data on cistern catfish, Phreatobius cisternarum, from subterranean waters at the mouth of the Amazon River (Siluriformes, Incertae Sedis) Pap. Avulsos de Zool. (São Paulo)
Muriel-Cunha,Janice; Pinna,Mário de.
Data on new specimens of the rare subterranean catfish Phreatobius cisternarum are reported. Specimens were collected from hand-dug wells in the region of the mouth of the Amazon river, Brazil. A revised diagnosis of Phreatobius is proposed, and P. cisternarum is redescribed on the basis of new and previously available material. Included are data on coloration, both in life and preserved, SEM observations of external morphology, morphometric and meristic data. One juvenile specimen, the first known of the species, is reported and illustrated. The new and previously available material reveal considerable intraspecific variation in several morphological traits of P. cisternarum. Despite its rarity in collections, P. cisternarum seems to be common in wells in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phreatobius cisternarum; Siluriformes; Subterranean fishes; Fish ecology; Feeding habits; Behavior; Taxonomy.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492005002600001
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A new subterranean species of Phreatobius Goeldi, 1905 (Siluriformes, Incertae sedis) from the Southwestern Amazon basin Pap. Avulsos de Zool. (São Paulo)
Shibatta,Oscar Akio; Muriel-Cunha,Janice; Pinna,Mário C.C. de.
A new species of the previously monotypic catfish genus Phreatobius is described from an artificial well in the village of Rio Pardo, located 90 km south of the city of Porto Velho, State of Rondônia, Brazil, in the drainage area of the Rio Branco (Rio Madeira system, Amazon basin). Phreatobius dracunculus n. sp. differs from its only congener, P. cisternarum, by the absence of eyes (vs. present), the lack of dark integumentary pigmentation (vs. faint dark pigment always present), the presence of five pectoral-fin rays (vs. four), ventral procurrent rays 11-13 (vs. 22 to 26), dorsal procurrent rays 29-31 (vs. 42 to 50), fewer vertebrae (52 or 53 vs. 59 to 64) and the larger pseudotympanus. The new species shows all diagnostic characters so far proposed for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blind catfish; Subterranean fishes; Madeira basin; Habitat; Taxonomy.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007001700001
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