FIG. 3 in Review of the Early Cretaceous erymid lobsters (Crustacea: Decapoda) from the Western Tethys

FIG. 3. — Anatomical terminology of erymid lobsters: A, B, holotype BAS KG.50.4 of Palaeastacus foersteri Taylor, 1979 from the Barremian of Alexander Island, Antarctic: general view (A) and line drawing of the carapace (B); C, extant lobster Homarus gammarus (Linnaeus, 1758) with P1 chelae terminology. Abbreviations: a, branchiocardiac groove; b, antennal groove; c, postcervical groove; cam, carina of anterior margin; d, gastro-orbital groove; da, dactylus; db, dactylar bulge; ds, dorsal surface; e1e, cervical groove; i, inferior groove; im, inner margin; in, index; om, outer margin, PoA, post-orbital area; Sag, Sshaped anterior groove. Photographs: Hillary Blagbrough (A), Bart Braun (C). Line drawing: J. Devillez. Scale bars: 10 mm.