Albula gilberti, a new species of bonefish (Albuliformes: Albulidae) from the eastern Pacific, and a description of adults of the parapatric A. esuncula

摘要: A new species of bonefish (Albuliformes: Albulidae: Albulinae) from the eastern Pacific Ocean, Albula gilberti, is described. Previously referred to as sp. A, A. gilberti distributed throughout Gulf California, Mexico coastal waters USA. Presently, it can be distinguished its closest relative, esuncula (= C) tropical Pacific, solely by differences in mitochondrial DNA (cytochrome b) gene sequences. No diagnostic external morphological characters have yet been found that reliably separate two distinct genetic lineages although some placement pelvic-fin tip relative vent may exist. Differences detected counts meristic should tested larger series specimens, especially esuncula. Available evidence also suggests and show a parapatric distribution, with an area sympatry southern California. We provide description adults (the original was based on larvae), review current nomenclature subfamily Albulinae, discuss role justification using molecular data for diagnosing cryptic species.