Crab on the sternum, form a monophyletic group. Numbers of extant and extinct (†) species are given in brackets. The superfamily Eocarcinoidea, containing "Eocarcinus" and "Platykotta", was formerly thought to contain the oldest crabs; it is now considered part of the Anomura. Both the constellation Cancer and the astrological sign Cancer are named after the crab, and depicted as a crab. William Parsons, 3rd Earl of Rosse drew the Crab Nebula in 1848 and noticed its similarity to the animal; the Crab Pulsar lies at the centre of the nebula. The Moche people of ancient Peru worshipped nature, especially the sea,
The Snake and the Crab These portray the crab as honest and plain dealing, drawing the moral that one should be straightforward in behaviour and beware of friendship with those who are not. The story had therefore travelled a long way from being an illustration of hypocritical behaviour. Scholars believe that the fable of "The Two Crabs", alternatively known as "The Young Crab and its Mother" (Perry Index 322), also derives from the original Greek idiom. In this version, a young crab is told to walk straight by its mother and asks for a demonstration of how that is done. The story, recorded by Babrius