Burreson E M, Arthur J R
School of Marine Science, Virginia Institute of Marine Science, College of William and Mary, Gloucester Point 23062.
J Parasitol. 1994 Oct;80(5):820-2.
The Arctic marine leech Notostomum laeve is reported for the first time from North America. A single, small specimen was collected in April 1990 on the external surface of 1 of 30 Greenland halibut Reinhardtius hippoglossoides from Cumberland Sound, Baffin Island, Northwest Territories, Canada. Total length of the specimen including suckers is 41 mm; maximum body width is 1.8 mm. The species is easily identified by the unusual suckers. The caudal sucker is divided into 2 lateral halves that appear to close somewhat like a clam shell; the oral sucker is very thick and muscular with a row of small, hard teeth-like papillae around the outer margin. On the basis of this report from northern Canada, N. laeve probably has a circumpolar distribution in the Arctic Ocean.
北极海洋水蛭Notostomum laeve首次在北美被报道。1990年4月，在加拿大西北地区巴芬岛坎伯兰湾的30条格陵兰大比目鱼（Reinhardtius hippoglossoides）中的1条鱼的体表采集到了1个小标本。该标本包括吸盘在内的总长度为41毫米；最大体宽为1.8毫米。该物种很容易通过其不同寻常的吸盘来识别。尾吸盘分为两个外侧部分，看起来有点像蛤壳一样闭合；口吸盘非常厚实且肌肉发达，在外缘周围有一排小的、坚硬的齿状乳头。基于加拿大北部的这一报道，Notostomum laeve可能在北冰洋呈环极分布。
