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Emplectonema neesii : ウィキペディア英語版 | Emplectonema neesii
''Emplectonema neesii'' is a species of ribbon worm in the phylum Nemertea. It is found on the middle and lower regions of the shore, under stones and in shingle and is common round the coasts of Britain and Ireland. ==Description== Like other ribbon worms, this species is not divided into segments but is long, thin and contractile. It is usually ten to fifteen centimetres long but can extend to thirty centimetres. The head is bluntly pointed and has a slit at the front. It bears many eyes, usually in two groups, but these are hard to see because of the worm’s colouring and texture. There is an extensible proboscis above the mouth. The head is delineated by a pale streak where it joins the body. The dorsal surface of the body is rounded and brown with longitudinal streaks and a faint iridescence. The ventral surface is off white and flattened. 〔John Barrett and C M Young, Collins Pocket Guide to the Sea Shore (1958) p.48〕
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