小頭睡鯊

Somniosus microcephalus

太平洋四百二十七厘米的鲨鱼

格陵蘭鯊（學名：Somniosus microcephalus），又名小頭睡鯊、大西洋睡鯊、格陵蘭睡鯊、灰鯊，是一種大型鯊魚，其身形巨大，體長可以与大白鯊相提並論。格陵蘭鯊的居住地比任何鯊魚位於更北之地，其生活在格陵蘭和冰島周圍的北大西洋海域，是太平洋睡鯊的近親。

纲: 板鳃纲
目: 角鲨目
科: Somniosidae
属: Somniosus
最大体长: 427 cm
体型: elongated
分布: North Atlantic from the USA and Canada to Greenland in the west and from Portugal to the Barents Sea and Eastern Siberian Sea. Genetic analyses caution that the geographic range of this species may be much narrower, ranging from Canada, Greenland, Iceland, Faroe Islands, and Norway, with occasional records from Cuba, France and Spain (Canary Is.) (Yano et al. 2007, MacNeil et al. 2012, Walter et al. 2017, Simpson et al. 2018). Records from the western Atlantic, including records from the northern Gulf of Mexico and Canadian side off the Davis Strait exhibit evidence of introgressive hybridisation with Pacific Sleeper Shark ( Somniosus pacificus ) which has been recorded as far north as the Azores Islands (Portugal) (Walter et al. 2017).
保护状态: VU易危

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