Not a variation of the well-known Steamboat Hornpipe, but an entirely different tune.
As played at the Golden Guinea pub session, Bristol (UK) - I don’t recall having heard it played anywhere else.
We refer to it as "Steamboat No 2." and normally play it with a this setting …
… of the other Steamboat Hormpipe, which we refer to as "Steamboat No. 1"
and is referred to there as Steamboat No. 2.
I’ve never actually heard this played in a session but it’s one worth learning. This setting is similar in the first part but quite different in the second. Taken from ‘A Fine Selection of Over 200 Irish Traditional Tunes for Sessions’, compiled by David Speers with a Forward by Matt Cranitch.
I remember seeing "The Nutcracker Suite" ballet on TV one Christmas, performed by, I think Scottish Ballet, and for one scene, they dispensed with the original Tchaikovsky score and used this tune instead! Brilliant!
Neither version above is exactly as I know it, but the second one is closer.
I believe I know this tune (with minor variations) as the Hornpipe “The Good Natured Man.”