Yes, both the regular and warped jellies have a superior variant that has a chance of spawning. If you want a superior jelly to spawn, you will need to unlock a slayer perk called Bigger and Badder. You need to buy this perk with 150 slayer points, and you can do this at any slayer master.  Superiors have a one in 200 chance of spawning, and you need to be on a slayer task.  The vitreous jelly is the superior variant of the normal jelly. The average value of this jelly is worth 44k per kill. They have 190 hitpoints and give 1900 exp per kill in the slayer skill. You can get the imbued heart and the eternal gem from these monsters. It shared the same drop table with normal jellies, but it drops 3 items at once.   The wrapped jelly has a superior variant called the vitreous warped jelly. This monster is worth at least 47k per kill. It has 3 drops at once. Next to the normal drops, the warped jelly also drops special superior drops like the imbued heart and the eternal gem. A vitreous warped jelly has 220 hit points and gives you 2200 slayer experiences. They do not have a special attack, so you can kill them the same way as regular warped jellies.