tis ˌnɪloʊˈsɪrtɨs A broad canallike feature, running N from the tip of Syrtis Major to Coloë Palus Nilus ˈnaɪləs From the Nile , the river of Egypt Nymphaeus nɪmˈfiːəs A river of Armenia Oceanus oʊˈsiːənəs From Oceanus , a mythical river surrounding the world and the Titan who shared its name Ochus ˈoʊkəs A river of Bactriana Opharus ˈɒfərəs A river of Sarmatia Orcus ˈɒrkəs NW to SE: connects Trivium Charontis to Nodus Gordii , where it turns into Eumenides canal From Orcus , a synonym of Hades Orontes oʊˈrɒntiːz E to SW: connects Serbonis Palus to Sabaeus Sinus From the Orontes , a river of Syria Orosines Oxus ˈɒksəs NE to SW: connects the Deuteronilus and the Indus canals From an old name for the Amu Darya , a river of Central Asia P-R Pactolus pækˈtoʊləs From the river Pactolus in Anatolia Padargus pəˈdɑrɡəs Palamnus pəˈlæmnəs Parcae ˈpɑrsiː Peneus piːˈniːəs Runs EW through Hellas From the Peneios river in the Peloponnesus of Greece Permessus pɛrˈmɛsəs Pierius paɪˈiːriəs E to W: connects Copaïs Palus and Arethusa Lacus Phasis ˈfeɪsɨs N to S: connects Phoenicis Lacus and Aonius Sinus Phison ˈfaɪsɒn N to S: connects Coloë Palus to Sinus Sabaeus From Pishon , one of the four rivers of Eden Phlegethon ˈflɛdʒɨθɒn From the Phlegethon , a mythical river of Hades Protonilus ˌprɒtoʊˈnaɪləs E to W: connects Coloë Palus and Ismenius Lacus Means "first Nile" Psychrus ˈsaɪkrəs Pyramus ˈpɪrəməs S from pole via Copaïs Palus to junction of Boreosyrtis and Cadmus canals Pyriphlegethon ˌpɪrɨˈflɛdʒɨθɒn NW to SE: connecting Propontis and Lacus Phoenicis From Pyriphlegethon ("fiery Phlegethon ") , a mythical river of Hades Python ˈpaɪθɒn From the monster Python which Apollo killed Rha ˈreɪ From a classical name for the river Volga Rhyndacus ˈrɪndəkəs From the classical river Rhyndacus in Anatolia S-X Scamander skəˈmændər S to N from Mare Chronium to Mare Cimmerium , between Electris and Eridania From the river Scamander in the Troad Sesamus ˈsɛsəməs From a Paphlagonian river Simoïs ˈsɪmoʊɨs S to N from Mare Chronium to Mare Cimmerium between Phaëthontis and Electris From the river Simoïs in the Troad Sirenius saɪˈriːniəs N to S: connects the Tanais canal near Nerigos with the E end of Mare Sirenum Means "of the Sirens Siris ˈsaɪrɨs From an Italian river in Lucania Sitacus ˈsɪtəkəs NE to SW: connects Coloë Palus to Fastigium Aryn From the name of a river in Persis Steropes ˈstɛroʊpiːz From the name of a Cyclops Styx ˈstɪks From the mythical river Styx in Hades Surius ˈsjuːriəs From a river of Colchis Tanaïs ˈtæneɪɨs From Tanais , an old name for the river Don in Sarmatia Tantalus ˈtæntələs From Tantalus , a mythical king imprisoned in Hades Tartarus ˈtɑrtərəs N to S: connects Trivium Charontis to Titanum Sinus From Tartarus , a name for the Underworld Tedanius tiːˈdeɪniəs From an Illyrian river Thermodon θɛrˈmoʊdɒn Thoth ˈθɒθ From the name of the Egyptian god Thoth Thyanis ˈθaɪənɨs Possibly an error for Thyamus, the name of a river of Epirus Titan ˈtaɪtən From the Titans , the relatives and opponents of the gods Tithonius taɪˈθoʊniəs Triton ˈtraɪtɒn NW to SE: connects Nepenthes canal to the W end of Mare Cimmerium From the seadeity Triton Tyndis ˈtɪndɨs Typhon ˈtaɪfɒn E to W: connects Deltoton Sinus to Sirbonis Palus Typhonius taɪˈfoʊniəs Ulysses juːˈlɪsiːz From Ulysses , the Roman name for Odysseus Uranius juːˈreɪniəs E to W: connects Lunae Lacus to Ascraeus Lacus Xanthus ˈzænθəs N to S: connects Mare Tyrrhenum to Promethei Sinus , between Eridania and Ausonia Means "yellow" Xenius ˈziːniəs NE to SW: connects Arethusa Lacus to Dirce Fons