Leucistic Antarctic fur seal (Arctocephalus gazella) at Robert Island, South Shetland Islands, Antarctica, with a note on colour morph nomenclature
Leucistic Antarctic fur seal (Arctocephalus gazella) at Robert Island, South Shetland Islands, Antarctica, with a note on colour morph nomenclature
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南极洲南设得兰群岛罗伯特岛的白种南极海狗（Arctocephalus gelella），附有颜色变形命名法的注释
作者：
V. Romero;Diego G. Tirira
包括白化病、白化病和黑化病在内的毛色疾病在哺乳动物中很少见。在世界范围内，这些非典型病例自然很少发生，文献报道也很少，特别是在鳍足类动物中。关于哺乳动物颜色的现有知识来自于对老鼠和其他家养哺乳动物的研究。一般来说，这种信息与大多数哺乳动物是同源的。然而，对鳍足类非典型着色模式的适应性解释及其生物学相关性尚不确定。因此，该报告间接证明了这类食肉动物遗传变异被误解的来源。在这里，我们提出了一个机会观察南极海狗，Arctocephalus gazella，从半岛铜矿，在罗伯特岛，南设得兰群岛，南极洲。2013年2月5日记录1例白斑稀释型年轻雄性。这是在这个岛上首次确认的白斑海豹的记录。此外，我们对颜色变体的命名法提供了一些一般性的评论。
Fur chromatic disorders, which include albinism, leucism and melanism, are rare in mammals. Worldwide these atypical cases are naturally infrequent and poorly reported in the literature, particularly in pinnipeds. The knowledge available about colouration in mammals comes from studies in mice and other domestic mammals. Generally this information is homologous to most mammals. However, adaptive interpretation of atypical colouration patterns in pinnipeds and its biological relevance are uncertain. Hence, this report is indirect evidence of a source of misunderstood genetic variability for this group of carnivores. Here, we present an opportunistic observation of leucism in an Antarctic Fur Seal, Arctocephalus gazella, from Peninsula Coppermine, in Robert Island, South Shetland Islands, Antarctica. A young male with a leucistic dilute phenotype was recorded on February 5th, 2013. This is the first confirmed record of a leucistic fur seal on this island. Additionally, we provide some general comments on the nomenclature used for colour morphs.