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A new species of Bregmacerotidae Pisces, Bregmaceros cantori, from the western Atlantic Ocean



A new species of Bregmacerotidae Pisces, Bregmaceros cantori, from the western Atlantic Ocean



Bulletin of Marine Science, 351: 11-19



A new species, B. cantori, is described from more than 600 juvenile and adult specimens collected from the Cariaco Trench, Venezuela, and the Gulf of Mexico. The species differs markedly from B. macclellandi and B. atlanticus, as well as from an undescribed species. B. cantori sp. nov. can be identified based on several morphological, meristic and probable behavior/ecological characteristics (e.g., eye size, fin ray counts, diurnal vertical migration). The new species is coastal-oceanic in its distribution and superficially resembles Indo-Pacific B. nectabanus and B. rarisquamosus, from which it differs in meristic characteristics. Larval B. cantori are the most common bregmacerotid in the western Atlantic and are easily separated from their congeners and from other species that have been described. B. cantori sp. nov. from the Cariaco Trench undergoes a diurnal vertical migration in which the adult population spends appr. 11 h in the anoxic, sulfurous waters of the Trench, a behavior pattern not previously observed in Atlantic Bregmaceros.

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Accession: 037642946

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