I notice that your couple were listed on the same fiche and page as another
SURMON. Is he a relative?
Unassisted Immigrants Arriving Victoria
http://prov.vic.gov.au/index_search?searchid=23SURMON Albert George 19 years Arrived Dec 1852
GLORIANA Port B 021/007
SURMON John Christopher 35 years Arrived Dec 1852
GLORIANA Port B 021/007
SURMON Maria 32 years Arrived Dec 1852
GLORIANA Port B 021/007
Index to Outward passengers...ages are not a match but with such an unusual surname I think it is them leaving Melbourne for Sydney.
http://prov.vic.gov.au/index_search?searchid=42SURMON Mr 28 years
CITY OF SYDNEY II Apr 1855 to Sydney 1855/ 001
SURMON Mrs 26 years
CITY OF SYDNEY II Apr1855 to Sydney 1855/ 001
Another relative in Victoria?
SURMON Edward Basnett.
Marriage 5 Sept 1853
Place St Andrews Brighton
Spouse
ANDREWES Marianne
Witnesses, SURMON John C, SURMON Marian St Andrew's Church of England Brighton - marriage register 1849-1858.
Cando