2009年5月7日 星期四

飛龍飛刀 - 一種產於巴西南里奧格蘭德州沼澤的新種無齒刀魚

文獻來源: GIORA, J. ; MALABARBA, L. R. ; CRAMPTON, W. G. R. 2008. Brachyhypopomus draco, a new sexually dimorphic species of Neotropical electric fish from southern South America (Gymnotiformes: Hypopomidae). Neotropical Ichthyology 6: 159-168. [全文下載]

Abstract
Brachyhypopomus draco, new species, is described from central, southern and coastal regions of Rio Grande do Sul state, Brazil, and Uruguay. It is diagnosed from congeners by, among other characters, the shape of the distal portion of the caudal filament in mature males, which during the reproductive period forms a distinct paddle shape structure.