| Name: | RIO launched as CRITERION |
| Type: | Cargo Ship |
| Launched: | 27/09/1870 |
| Completed: | 11/1870 |
| Builder: | Charles Mitchell & Co |
| Yard: | Low Walker |
| Yard Number: | 234 |
| Dimensions: | 1494grt, 978nrt, 260.8 x 33.2 x 25.0ft; (1880: 1650grt, 265.0ft) |
| Engines: | C2cyl (33 & 66 x 42ins), 160nhp |
| Engines by: | T Clark & Co, Newcastle |
| Propulsion: | 1 x Screw |
| Construction: | Iron |
| Reg Number: | 62368 |
| History: | |
| 17/11/1870 | Watts, Milburn & Co, Newcastle |
| 1871 | Hamburg Sudamerikanische Dampfschiffahrts Gesellschaft, Hamburg |
| 1891 | M Jebsen, Apenrade |
| 1898 | Rheinisch Westfálisches kohlen Kontor, Hamburg |
| 1901 | Broken up |
| Comments: | 1870: Chartered to Hamburg Brasilianische Dampfschiffahrts Gesellschaft |
| 1880: Lengthened to 265.0ft, then 1650grt | |
| 13/12/1899: Beached at Kiau-Chau, China after the cargo of coal caught fire | |
| Subsequently converted to a coaling hulk | |
| 01/1901: Broken up |