Squat lobster
Videos
Squat lobsters are dorsoventrally flattened crustaceans with long tails held curled beneath the cephalothorax. They are found in the two superfamilies Galatheoidea and Chirostyloidea, which form part
Munidopsis tridentata
Squat lobsters can form dense aggregations.
Porcelain crabs, like Neopetrolisthes maculatus, are closely related to squat lobsters.
Dorsal (left) and ventral (right) views of the holotype of Kiwa puravida (Kiwaidae); two pereiopods have broken off on the animal's left side.
Carcinisation
Videos
Carcinisation is a form of convergent evolution in which non-crab crustaceans evolve a crab-like body plan. The term was introduced into evolutionary biology by Lancelot Alexander Borradaile, who desc
Squat lobster
…missing. The remaining pleopods can be similar to those of the females, or reduced in size, or entirely absent. In both sexes, the uropods are biramous. Carcinisation has previously been explored with regard to outer morphology; however, the external changes in body shape also influence internal anatomical features…
Porcelain crabs resemble true crabs, but are more closely related to squat lobsters and hermit crabs.
A raninid true crab preserved specimen.