Lewis Short
nītella | nītēla (noun F) : (contr from nitedula, q. v, sometimes written , but v. Lachm. ad Lucr. 3, 1015)
* A small mouse, a dormouse, Plin. 8, 57, 82, § 224; Mart. 5, 37, 8; Serv ad Verg. G. 1, 181.
Charlton T. Lewis, Charles Short, A Latin Dictionary