Ab urbe condita
Titus Livius (Livy)
Livy. History of Rome, Volumes 1-2. Roberts, Canon, Rev, translator. London, New York: J. M. Dent and Sons; E. P. Dutton and Co., 1912.
Subsequently a religious difficulty arose through an informality in their nomination, and they resigned their posts. In consequence of a pestilence which followed, it seemed as though all the auspices were tainted by that informality, and matters reverted to an interregnum.
There were five interreges and under the last one, M. Valerius Corvus, the consuls elected were C. Cornelius (for the second time) and Cn. Domitius.