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A new deep-sea species of Barathronus Goode & Bean from Brazil, with notes on Barathronus bicolor Goode & Bean (Ophidiiformes: Aphyonidae) Neotropical Ichthyology
Nielsen,Jørgen G.; Mincarone,Michael M.; Di Dario,Fabio.
A new species of Barathronus (Ophidiiformes: Aphyonidae) is described from a single, mature male specimen (101 mm SL) bottom trawled on the continental slope of Rio Grande do Norte, northeastern Brazil, between 1,964 and 2,045 m depth. The new species is diagnosed among congeners by the following combination of characters: peritoneum transparent, deep-set eyes not visible, eight fangs on vomer, anal fin rays 69, predorsal length 42.0% SL, preanal length 49.5% SL, penis long, slender, and lacking a pair of lobes at its base, and presence of a ventral flexure of the anterior 2-3 vertebrae. Additionally, morphological data of three specimens of Barathronus bicolor collected in Brazilian waters are presented and compared with those from 51 specimens from the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Teleostei; Deep-sea diversity; Potiguar Basin; Western South Atlantic; Brazilian EEZ.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100053
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The supratemporal system and the pattern of ramification of cephalic sensory canals in Denticeps clupeoides (Denticipitoidei, Teleostei): additional evidence for monophyly of Clupeiformes and Clupeoidei Pap. Avulsos de Zool. (São Paulo)
Di Dario,Fabio; de Pinna,Mário C. C..
The cephalic portions of the latero-sensory canal system in Denticeps clupeoides are described and analyzed. The species, a small herring-like fish from relictual West African streams, is the most primitive living clupeomorph and sole Recent representative of suborder Denticipitoidei. As sister group to over 360 species in Clupeoidei, Denticeps is a key taxon in understanding clupeomorph and lower teleostean relationships. Observations on recently-collected specimens of Denticeps clupeoides revealed comparatively-important and previously-unrecorded details of the cephalic latero-sensory canals which are relevant for understanding relationships at different levels in clupeomorph phylogeny. The infraorbital, supraorbital, preopercular, extrascapular and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clupeiformes; Denticeps clupeoides; Latero-sensory system; Lower teleosts; Phylogenetic relationships; Postorbital bulla; Sensory biology.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492006001000001
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