Figure 1.

Representatives of major decapod lineages. (a) Lucifer sp. (southeast Florida, USA) (Dendrobranchiata); (b) Stenopus hispidus (Komodo, Indonesia) (Stenopodidea); (c) Procaris chacei (Bermuda) (Procarididea); (d) Arctides regalis (Maui, Hawaii, USA) (Achelata); (e) Cherax quadricarinatus (aquarium specimen) (Astacidea); (f) Thor amboinensis complex (Ternate, Indonesia) (Caridea); (g) Axiopsis serratifrons (Bali, Indonesia) (Axiidea); (h) Stereomastis sculpta (specimen ULLZ 8022) (Polychelida); (i) Upogebia cf. pusilla (Arcachon Bay, France) (Gebiidea); (j) Emerita talpoida (Westerly, Rhode Island, USA) (Anomura); (k) Pachygrapsus crassipes (Catalina Island, California, USA) (Brachyura). Photo credits: (a) L. Ianniello; (b) A. Vasenin, licence CC-BY-SA; (c) T. M. Iliffe; (d,k) J. Scioli; (e) C. Lukhaup; (f) C. H. J. M. Fransen; (g) A. Ryanskiy; (h) D. L. Felder; (i) X. de Montaudouin; (j) J. M. Wolfe. (Online version in colour.)