- ectoneural
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adj. [Gr. ektos, outside; neuron, nerve](ECHINODERMATA)Pertaining to the oral part of the nervous system (sensory and motor).
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
hyponeural — adj. [Gr. hypo, under; neuron, nerve] (ECHINODERMATA) Part of the nervous system deeper and more weakly developed than the ectoneural system … Dictionary of invertebrate zoology