巧言虫

巧言蟲是一種背部扁平又纖細的蠕蟲，有體節高達200節。蠕蟲最長可以生長至15 cm（6英寸），顏色從中綠色到亮綠色。頭部有五條觸角、兩隻眼及四對tentacular cirri；the eversible proboscis is cylindrical and dotted with rounded papillae. Each body segment has a pair of parapodia, and the cirri on these are long, thin and pointed. They project outwards, forming a fringe down each side of the body.[7]

1990年代以前，巧言蟲被認為遍佈東北大西洋，包括環繞英國的水域[1]，但形態學及生物化學研究表明在分佈於南部的物種應屬另一物種，即Eulalia clavigera；而這兩個物種形成了一個生物複合種[8]。

在北大西洋海域，見於歐洲的挪威、英國及愛爾蘭

As now recognised, E. viridis is native to the northeastern Atlantic Ocean where it is found in the waters off Norway, Sweden, Denmark and Germany, as well as the 法罗群岛, Iceland and 迪斯科岛 at depths from the mid-shore down to about 150米（500英尺）. It is typically found on rocky coasts and on shelly gravel,[9] in rock crevices and 無孔貽貝 beds.[7]

主要分佈於在中國分佈於山東半島、遼東半島[10][11]、黄海、东海、南中國海[1]，還有白海、新西伯利亞群岛、白令海、千岛群岛、勘察加半岛、鄂霍次克海、日本海等海域[1]。 一般栖息于北方和亚热带水域以及主要栖息于潮间带和潮下带海藻、藤壶、牡蛎及海鞘等附着动物和岩石下[1][5][6]。其生存的海拔下限为-2400米[1]。

Although many worms in this family are 捕食 and actively hunt prey, E. viridis seems to be more selective in its diet, and researchers found that it only consumed moribund or dead animal tissue. Breeding does not take place until the worms are at least two years old, and they are not thought to form swarms as do some other related species.[12] The greenish gelatinous egg mass is attached to 褐藻纲, but some populations seem not to have egg masses. The larvae pass through one or two 担轮幼虫 stages and two other stages before settling on the sea bed as a five- to nine-segmented larva, after up to nine weeks.[12]