The snake was said to have fallen from the top roof of the chamber and disrupted plenary as legislators took to their heels for safety.
Lawan's submission did not go down well with Senator Danjuma Goje, who kicked against the decision of the Senate President.
This was made known on Tuesday by the Chairman, Senate ad hoc committee on Media and Public Affairs, Senator Adedayo Adeyeye while addressing journalist after plenary.
President Muhammadu Buhari had sent the list containing the names of those expected to form the next cabinet of the Federal Executive Council (FEC).
The list was sent to the Senate on Tuesday.
The list is coming barely 3 days away from the two months recess lawmakers are expected to embark on.
This is coming days after he was advised by the upper legislative chamber to do so before lawmakers embark on their two months recess expected to end in September.
He succeeded Walter Onnoghen, ousted for allegedly failing to declare some assets traced to him.
Mr Lawan stated this on Friday while addressing Women Parliamentarians, led by Joy Emordi, a former federal lawmaker.
Akpan said failure to make the ministerial list available before the national assembly embark on holiday will shatter the concerted effort being made by both arms of government to return to the yearly budget cycle of January to December.