Ergo ubi nox aderit venturis tertia Nonis,
sparsaque caelesti rore madebit humus,
octipedis frustra quaerentur bracchia Cancri:
praeceps occiduas ille subibit aquas.
311 Therefore when the third night before the Nones has come, and the ground is sprinkled and drenched with heavenly dew, you shall look in vain for the claws of the eight-footed Crab: headlong he'll plunge beneath the western waves.1
1
Ovid has confused the morning with the evening setting of the Crab.