Scattered references in later sources suggest that a Musaeum was reestablished in the 4th century on a different site, but little is known about this later organisation and it is unlikely to have had the resources of its predecessor.
Neuredne reference u kasnijim izvorima sugeriraju da je museion ponovno uspostavljen u 4. stoljeću na drugom mjestu, ali malo se zna o ovoj kasnijoj organizaciji i malo je vjerojatno da su imali sredstva koja su imali njihovi prethodnici.