I to N Ixion 1841–1879. Built by Fenton, Murray and Jackson, this was the locomotive that represented the broad gauge at the Gauge Commission trials of 1845, achieving a maximum of . Ixion was a king in Greek mythology. Jupiter 1841–1867. Built by R B Longridge and Company. This locomotive was named after Jupiter, a senior Roman god. Leopard 1840–1878. Built by Sharp, Roberts and Company. A leopard is a large member of the cat family. Lethe 1842–1878. Built by Fenton, Murray and Jackson. Lethe is one of the rivers in Hades, the Greek underworld, and drinking its waters caused forgetfulness. Lucifer 1841–1870. Built by R B Longridge and Company. Lucifer was the poetic Roman name for the morning star. Lynx 1840–1870. Built by Sharp, Roberts and Company. A lynx is a kind of wild cat. Mars 1841–1868. Built by R B Longridge and Company. This locomotive was named after Mars, the Roman god of war. Mazeppa 1841–1868. Built by G and J Rennie. Mazeppa was a popular Victorian heroic poem. Medea 1842–1873. Built by Fenton, Murray and Jackson. Medea was a princess in Greek mythology. Medusa 1842–1864. Built by Fenton, Murray and Jackson. Medusa was a Greek mythological monster whose look could turn a person to stone. Mentor 1841–1867. Built by Nasmyth, Gaskell and Company. The original mentor was a friend of Odysseus who featured in Greek mythology. Mercury 1841–1865. Built by R B Longridge and Company. This locomotive was named after Mercury, a Roman god. Milo 1841–1866. Built by Nasmyth, Gaskell and Company. This locomotive was probably named after Titus Annius Milo, a Roman politician. Minos 1841–1870. Built by Fenton, Murray and Jackson. Minos was a king of Crete featured in Greek mythology. N to W Orion 1842–1867. Built by Nasmyth, Gaskell and Company. Rebuilt as a 4-2-2ST saddle tank locomotive. This locomotive was probably named after Orion of Thebes, a Grecian scholar. Ostrich 1840–1865. Built by Sharp, Roberts and Company. An ostrich is a large flightless bird; the name was later carried by a Hawthorn class locomotive. Panther 1840–1869. Built by Sharp, Roberts and Company. A panther is a big cat and appears in Greek mythology as an animal that carried gods. Pegasus 1842–1868. Built by Nasmyth, Gaskell and Company. Pegasus was the winged horse of Greek mythology. Phlegethon 1842–1866. Built by Fenton, Murray and Jackson, this locomotive had the privilege of powering Queen Victoria's first railway