- notocephalon
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n. [Gr. notos, back; kephale, head](ARTHROPODA: Insecta)1. In Notonectidae, the dorsal view of the head.2. (ARTHROPODA: Chelicerata)In Arachnida, the dorsal shield of the prosoma.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
