- orthostrophic
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adj. [Gr. orthos, straight; strophe, to turn](MOLLUSCA: Gastropoda)Coiled in a normal manner, as opposed to hyperstrophic.
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.