Figure 5.Dorsal carapace pattern (shape of light patches could vary slightly): Gecarcinus lateralis (Freminville 1835) (sensu Türkay 1973): A Pacific coast of Central America. Atlantic coast of Central America: B form with lateral margin (M) on dorsal carapace and orange patches at anterolateral (AP) and posterior (PP) carapace border; C form without lateral margin on dorsal carapace D Gecarcinus nobilii sp. n.
Figure 6.A–C lectotype of Gecarcinus lateralis (Freminville, 1835), male, carapace width 47.2 mm, Guadeloupe (MNHN-3758) (dried specimen, color faded) D–F syntype of Gecarcinus quadratus Saussure, 1853, male, carapace width 39.7 mm, Mexico, Mazatlan (ANSP-CA3741) (dried specimen, color faded) (photos by Paul Callomon, Academy of Natural Sciences of Drexel University, Philadelphia).