Kalamansi
Kalamansi are in the same family classification as Mumansi, but with a variation. They are still herbivores of a Rhino-based nature that have the same peaceful-unless-provoked mentality. They are primarily more situated to arid climates than their Mumansi cousins, however, and surprisingly larger. The size difference has to do with an increase in natural armor and their ability to go without water for a considerable period of time. They are prone to migrate through the Akaptor deserts, and with an uncanny sense of direction - stopping only at various Oasi to replenish water. They also roam in small herds.
They are somewhat rare, though, but adventurers passing through the desert will often use a Kalamansi as a natural guide to find an Oasis. There is a small Kalamansi caretaker area outside the walls of Kelerm, though they are not domesticated, the beast masters of Kelerm have created ideal nesting grounds with Geomancy to "encourage" the creatures to stop by often, simply "guiding" their migration habits.
Despite the similarities, there are differences in climate preference, size (body and horns), drinking habits, and coloration. Attitude and ferocity are still very much the same, but due to the increase in size, no intelligent predator would ever mess with one for fear of being immediately gored.
Nether Tonorion
This creature has the same general body shape of a Tonorion, but with the appearance of mutations. Its long body has large fin-like protrusions along the carapace, and glows an ethereal Turquoise color between a few segments along its body, and a terrifying glow across the many eyes on the front of its body, with small wispy trails flowing through the air from the corner of each of its eyes. This creature hails from the same area of Lydus that the Negative Hydras come from, and so they use dimensional magic to travel. It sails through the ground without having to dig through the earth, making it extremely difficult to detect by other creatures. Despite exuding a similar anti-magic aura as regular Tonorions, it isn't quite as strong, but they have a particular weakness to dimensional mages - who, like their ability to sever the connection of a Negative Hydra, could also freeze a Nether Tonorion's movements entirely.
Hauling a single carapace of one back will make an adventurer rich enough to live off the profits for decades. Their natural magic suppression is a lot easier to harvest than a regular Tonorion, despite being harder to kill without the right hunting party. Their body greatly furthers magical research and development in Negav, if one is found - but since they live either in the deep recesses of the underground, or in the Lydus itself, finding one is either incredibly unlucky, or incredibly difficult.