Eryma birdi Woods, 1930 from the Toarcian of Peak (United Kingdom). A–C: holotype NHMUK In.27125: lateral view (A), schema (B), dorsal view (C); D–E: paratype NHMUK In.27123: lateral view (D), schema (E). Scale bars: 1 cm. Abbreviations: a: branchiocardiac groove; b: antennal groove; b1: hepatic groove; c: postcervical groove; d: gastro-orbital groove; e₁e: cervical groove; i: inferior groove; ip: intercalated plate; PoA: postorbital area; s1–4: pleonal somites; χ: attachment site of adductor testis muscle; ω: attachement site of mandibular muscle. Photographs: J. Devillez. Line drawings: J. Devillez.