Oceanus dragons resembled giant winged eels. Their limbs were relatively short and their fingers were webbed. They could breathe both water and air and could live indefinitely in either environment. They were capable of flight, but tended to prefer underwater environments.
The preferred weapon of Oceanus dragons was their tranquilizing breath weapon. They preferred to quickly neutralize their adversaries with it and their ability to innately cause effects similar to the control water, control winds, detect evil, dispel evil, holy smite, holy word, and water breathing spells.
If facing stronger opponents, Oceanus dragons did not hesitate to bring their formidable battle skills to bear. They possessed a lightning breath weapon and, akin to paladins, could deal devastating physical damage against evil creatures.
Oceanus dragons guarded the River Oceanus, protecting travelers along its course from evil creatures and natural hazards. Although they spent most of the time on patrol, it was common for Oceanus dragons to visit the Dragon Eyrie from time to time. They could also be found in Arvandor, the Gates of the Moon, Heliopolis, and Warrior's Rest.
Although Oceanus dragons did not spend much time pursuing activities other than patrolling, they tended to make their lairs in underwater caves or hidden caverns along riverbanks. They could be found alone or in families as they raised their young. Clutches of young Oceanus dragons were also commonly found.
- Andy Collins, James Wyatt, and Skip Williams (November 2003). Draconomicon: The Book of Dragons. (Wizards of the Coast), pp. 181–182. ISBN 0-7869-2884-0.
- Richard Baker, James Wyatt (March 2004). Player's Guide to Faerûn. (Wizards of the Coast), p. 150. ISBN 0-7869-3134-5.
- Eric L. Boyd, Eytan Bernstein (August 2006). Dragons of Faerûn. (Wizards of the Coast), p. 11. ISBN 0-7869-3923-0.
Chromatic dragons: Red • Black • Blue • Green • White • Brown • Gray • Purple • Yellow
Gem dragons: Amber • Amethyst • Emerald • Sapphire • Topaz • Crystal • Obsidian
Lung dragons: Chiang lung • Li lung • Lung wang • Pan lung • Shen lung • T'ien lung • Tun mi lung • Yu lung
Planar dragons: Astral • Battle • Blight • Chaos • Ethereal • Howling • Mirage • Oceanus • Pyroclastic • Radiant • Rust • Shadow • Styx • Tarterian
Epic dragons: Force • Prismatic
Catastrophic dragons: Volcanic
Miscellaneous dragons: Dzalmus • Mist • Radiant • Rattelyr • Song • Vishap
Draconic transformations: Air • Ascendant
Linnorms: Corpse tearer • Dread • Stygian
Drakes: Ambush • Black firedrake • Dragonne • Elemental (Earth • Fire • Ice • Magma • Ooze • Smoke • Water) • Felldrake (Crested • Spitting) • Greater • Guard • Mind • Portal • Rage • Space • Vulture
Dragonets: Draken • Faerie dragon • Pseudodragon
Dragonbloods: Draconic creature • Dragonborn of Bahamut • Dragonspawn
Drow-dragon (shadow) • Drow-dragon (deep) • Half-dragon • Kobold (Dragonwrought • Urd) • Weredragon • Zar'ithra • Zekyl
Undead dragons: Dracolich • Dragonwight • Hoarder • Rathrea • Vampiric • Zombie