|First appearance||The Underworld Bride|
Rhinoceros Dolphins are dolphin based cryptids that made their first and only appearance in The Underworld Bride.
They are about as big and long as normal dolphins They have sort of a horn-like nose, like a dolphin. They also have two dorsal fins. They are yellowish-greenish.
The dolphins are used for practice in Zak's cryptid power training. According to Ulraj, they are natural show offs and love to dance. They might just be a mutation.