Cycleryon propinquus ( Schlotheim, 1822 )

Odin, Giliane P., Charbonnier, Sylvain, Devillez, Julien & Schweigert, Günter, 2019, On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d’Histoire naturelle, Paris, Geodiversitas 41 (17), pp. 643-662: 654

publication ID 10.5252/geodiversitas2019v41a17

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Cycleryon propinquus ( Schlotheim, 1822 )


Cycleryon propinquus ( Schlotheim, 1822)   ( Fig. 9 View FIG )

STUDIED MATERIAL. — Charbonnier & Garassino (2012) listed five specimens (Appendix 1). We do not change their contribution.


The specimen MNHN.F. B13436 View Materials ( Fig. 9A View FIG ) is preserved in ventral view and exhibits asymmetrical first pereiopods: the right P1 presents the usual aspect whereas the left one is much more reduced. According to Van Straelen (1925) and Audo (2014), this physiology is not native but rather due to a regenerative heterochely. The crista dentata (serrated inner margin of the third maxilliped ischium) is visible.