A new species of Graptocarcinus, G. collinsi Vega, is recorded from lower Maastrichtian (Upper Cretaceous) strata assigned to the Arroyo Grande Formation to the south of Rodas (central Cuba). The three specimens available form part of a diverse decapod crustacean fauna currently under study. The new species differs from its Early and Late Cretaceous congener from Mexico, the United States, England, Spain, France, the Czech Republic and the Netherlands in being much wider than long, having a larger mean carapace size, in lacking or having an extremely weak cervical groove and coarse and densely arranged granules on the dorsal carapace.

Icriobranchiocarcinus rodas Vega n. sp., is recorded from lower Maastrichtian (Upper Cretaceous) Arroyo Grande Formation near the town of Rodas (Central Cuba). I. rodas Vega n. sp. represents additional evidence of paleobiogeographic affinities between Chiapas (SE Mexico) and Cuba, during the Late Cretaceous. The genus Icriobranchiocarcinus Vega, 2018 in Vega et al., 2018 was erected from the type species Icriobranchiocarcinus tzutzu Vega, 2018 from the lower Maastrichtian Ocozocoautla Forma-tion (Chiapas). I. rodas Vega, n. sp. preserves details of ventral morphology as well as more details of chelipeds not reported in I. tzutzu, adding to the morphology of the genus. Icriobranchiocarcinus belong to a family (Lythophylacidae Van Straelen, 1936) that became extinct worldwide during the K/Pg event.