An annual meteor shower, the radiant of which lies in the constellation Boötes, near the border with Hercules and Draco. The name dates from the time when this area of sky was identified as the constellation Quadrans Muralis, now no longer used. The peak of the shower occurs on about 3 January and the normal limits are 1-6 January. The narrow stream of meteors is not associated with any known comet, and the shower is somewhat variable, peak rates occurring over a relatively short time period.