Titan

Rivers
Here's a list of fictional rivers created for each lake/sea on Titan, so that each has four rivers entering it:

Kraken:


 * 1) Hapi Flumen: Named after the ancient Egyptian deity Hapi, who was associated with the annual flooding of the Nile River. This fictional river can be associated with the Nile-like river that stretches for over 400 kilometers (249 miles) and empties into Kraken Mare.
 * 2) Sobek Flumen: Named after the ancient Egyptian crocodile god, who was also associated with the Nile River.
 * 3) Khnum Flumen: Named after the ancient Egyptian god of the Nile's source, who was believed to create all things from the river's clay.
 * 4) Anuket Flumen: Named after the ancient Egyptian goddess of the Nile, who was also the goddess of hunting and war.

Ligeia:


 * 1) Gihon Flumen: 225 km
 * 2) Kokytos Flumina: 305 km
 * 3) Vid Flumina: 158 km
 * 4) Xanthus Flumen: 78 km

Punga:

Jingpo:
 * 1) Apanohuaya Flumen: 64 km
 * 2) Sambation Flumina: 210 km
 * 3) Tiberinus Flumen (fictional): Named after the Roman god of the Tiber River, which runs through Rome.
 * 4) Danuvius Flumen (fictional): Named after the Latin name for the Danube River, which is one of Europe's major rivers.
 * 1) Cephissus Flumen (fictional): Named after the Cephissus River in ancient Greece, associated with the god of the same name.
 * 2) Alpheus Flumen (fictional): Named after the river god Alpheus in Greek mythology, who was associated with the Alpheus River in the Peloponnese.
 * 3) Yamuna Flumen (fictional): Named after the Yamuna River in India, which is a sacred river in Hinduism and has its origin in mythology.
 * 4) Purus Flumen (fictional): Named after the Purus River in South America, which is a tributary of the Amazon River and has its own mythical associations with the indigenous people of the region.

Ontario:


 * 1) Hubur Flumen: 84 km
 * 2) Karesos Flumen: 83 km
 * 3) Saraswati Flumen: 2.9 km
 * 4) Inachus Flumen (fictional): Named after the Greek river god Inachus, the father of Io in Greek mythology.

Please note that these fictional rivers are created for the purpose of this exercise and are not based on any existing data from the Cassini-Huygens mission or other sources.

Islands
Here is a list of fictional islands created for each lake/sea on Titan, so that each has four islands:

Kraken:


 * 1) Mayda Island: Has the main shrine of Kraken
 * 2) Bermoothes Island
 * 3) Bimini Island
 * 4) Hufaidh Archipelago
 * 5) Krocylea Archipelago
 * 6) Penglai Island
 * 7) Royllo Island

Ligeia:


 * 1) Bralgu Island: Has the main shrine of Ligeia
 * 2) Buyan Island
 * 3) Planctae Archipelago
 * 4) Lemuria Island (fictional): Named after Lemuria, a hypothetical lost land that was believed to have existed in the Indian or Pacific Ocean, according to 19th-century scientific theories.

Punga:


 * 1) Hawaiki Archipelago: Has the main shrine of Punga
 * 2) Meropis Island
 * 3) Onogoro Island
 * 4) Thule Island (fictional): Named after Thule, an ancient Greek and Roman term for a distant, unknown land, often thought to be the farthest north.

Jingpo:


 * 1) Hy-Brasil Island (fictional): Has the main shrine of Jingpo
 * 2) Lyonesse Island (fictional): Named after Lyonesse, a legendary sunken land that was believed to be located off the coast of Cornwall in British mythology.
 * 3) Ys Island (fictional): Named after Ys, a legendary sunken city in Breton mythology, said to have been located off the coast of Brittany, France.
 * 4) Vineta Island (fictional): Named after Vineta, a legendary sunken city in the Baltic Sea, according to German and Slavic folklore.

Ontario:


 * 1) Antillia Island (fictional): Has the main shrine of Ontario
 * 2) Aztlan Island (fictional): Named after Aztlan, the mythical homeland of the Aztec people, believed to be an island or a group of islands.
 * 3) St. Brendan's Island (fictional): Named after St. Brendan's Isle, a legendary island said to be discovered by the Irish monk Saint Brendan during his voyage in the Atlantic Ocean.
 * 4) Sannikov Island (fictional): Named after Sannikov Land, a phantom island that was believed to exist in the Arctic Ocean, according to Russian folklore.

Please note that these fictional islands are created for the purpose of this exercise and are not based on any existing data from the Cassini-Huygens mission or other sources.