This study provides the first record of external morphological deformities in Chondrichthyes of the family Narcinidae. We report here abnormalities in two individuals of Narcine brasiliensis (Olfers, 1831), in which one of them had its pectoral fins not fused with the head and the other presented anophthalmia, with the left eye absent. Possible causes, including the high concentration of pollutants in the region, are briefly discussed.

中文翻译：

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西南大西洋巴西电射线纳辛（Narcine brasiliensis）（Olfers，1831）（Chondrichthyes：Narcinidae）的形态异常记录

这项研究首次提供了Narcinidae的软骨鱼类的外部形态畸形的记录。我们在这里报告中的两个人异常Narcine巴西（Olfers，1831），在其中一人有其胸鳍不与头部另赠送无眼融合，用左眼缺席。简要讨论了可能的原因，包括该地区污染物的高浓度。