FIG. 4 in Middle Jurassic lobsters (Crustacea, Decapoda) from Normandy, France

FIG. 4. — Glyphea dressieri Meyer in Bronn, 1837 from the Upper Callovian of Sainte-Scolasse-sur-Sarthe (Bachelier coll.): A, B, MHNLM 2008.12.613.5, isolated carapace, right lateral view and line drawing; C-F, MHNLM 2008.12.612.2, butterfly-shaped carapace (exuvia) and line drawings with and without scaly ornamentation in order to highlight carapace groove pattern and cephalic carinae; G, H, MHNLM 2008.12.613.7, detail of frontal region with cephalic appendages (G) and line drawing (H); I, MHNLM 2008.12.612.3, butterfly-shaped carapace (exuvia). Abbreviations: a, branchiocardiac groove; ac, antennal carina; a1, antennula; a2, antenna; b, antennal groove; b1, hepatic groove; c, postcervical groove; cd, cardiac groove; ct, carapace; d, gastro-orbital groove; e1e, cervical groove; gc, gastro-orbital carina; i, inferior groove; ic, intercervical groove; lcd, laterocardiac groove; me, merus; oc, orbital carina; P1, pereiopod 1; sac, supra-antennal carina; sc, scaphocerite. Photographs: A, C, I, P. Loubry; G, J. Falconnet. Line drawings: C. Chény. Scale bars: 1 cm.