Figure 87
Probably changes of the skeleton in the history of Eucyrtidiidae.
I-VIII) Subsequent stages of the reduction of the post-thoracic shell (Eucyrtidiinae); IX-XII) stages of the thiokening of the thorax (Neosciadiocapsinae); XIII-XVII) formation of legs (Lychnocaniinae); XVIII-XXI) changes of the abdomen (Pterocorydinae).
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