Heteronemertea

Illustration of Gorgonorhynchus repens, a species within the family Gorgonorhynchidae, discharging its proboscis in response to a perceived threat.

Heteronemertea is a monophyletic order of about 500 species of nemertean worm. It contains genera such as Lineus and Cerebratulus, and includes the largest and most muscular nemerteans.

Almost all heteronemerteans have three primary body-wall muscle strata: an outer longitudinal, a middle circular, and an inner longitudinal. The lateral nerve cords are outside the circular muscle, as in palaeonemerteans, but separated from the epidermis by the usually well-developed outer longitudinal muscle.

单词	Heteronemertea
释义	Heteronemertea 英汉-汉英词典异纽目词组 \| 习惯用语您要查找的是不是： heterogeneous adj. 由很多种类组成的；各种各样的 heterogeneity n. 异质性;不均匀性;不纯一性 heterogamous adj. 世代交替的 heterodyne adj. 电外差的 vi. 致差, 成拍, 产生外差效果 Heteronemertea n. 异纽目英语百科 Heteronemertea Heteronemertea is a monophyletic order of about 500 species of nemertean worm. It contains genera such as Lineus and Cerebratulus, and includes the largest and most muscular nemerteans. Almost all heteronemerteans have three primary body-wall muscle strata: an outer longitudinal, a middle circular, and an inner longitudinal. The lateral nerve cords are outside the circular muscle, as in palaeonemerteans, but separated from the epidermis by the usually well-developed outer longitudinal muscle.
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Heteronemertea

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Heteronemertea