Darkvision: Elves can see in the dark to a range of 60 feet.
Find secret doors: Elves have a 1-in-6 chance to notice a secret door automatically and have a 4-in-6 chance to find secret doors when actively searching, unlike the other races, which have only a 2-in-6 chance.
Defenses: Elves cannot be paralyzed by ghouls.
Classes: Player-Character elves may be Fighter/Magic-Users, Thieves, or Fighter/Magic-User/Thieves. In the Thief class, an Elf may advance with no maximum level limit. An Elf that is solely a Thief may take advantage of any XP bonus due to a high Dexterity score to gain experience more quickly. Elves advancing in more than one class are limited to 4th level Fighter (5th level with Strength of 17, 6th level with Strength of 18) and 8th level Magic-User (9th with an Intelligence of 18). (For more information on multi-classed Characters, see below.) Regardless of any further progression in levels as a Magic-User, Elves are able to cast magic spells only as high as 5th-level spells.
Those Elves who are not player-Characters might have abilities and limitations completely different from those of an adventuring Elf.
The nature of the elven race as a whole is entirely the province of the Referee, and might include non-player Characters of any class.