taken from Ships of the Inland Rivers - Ronald Parsons - ISBN 0947284346 - page 56

PS Bunyip - Official Number 40524 - built Mannum South Australia in 1858

get this "wooden twin hull paddle ship" 277 Gross, 112 Net
each hull 100.0' x 12.0' x 5.7'
two cylinder 20 HP - one cylinder in each hull, one wheel between the hulls
small auxiliary paddle wheel at the bow "to help rounding sharp bends"

all very strange - I can only assume that the bow wheel had axis rotation

burnt to the waterline in 1863 - was not insured

regards Derek