Mountain Roomba
As their populations increased in number and competition with one another increased, some Capilliarmus spikaspikaspik began settling areas where numbers were low such as the mountains in zone L. While this area both lacked any predators and competition, it was because almost no food is present in the mountains and they were fairly cold. The only source of food that grows here is the taxonophyte Humilipropogandos incolamontis. To deal with these new conditions, the population of C. spikaspikaspik developed several adaptations that led to them becoming a new species.
25 centimeters long
Originated in Zone L (specifically the mountains)
Surprisingly, the Mountain Roombas look and behave very similarly to their ancestors. The changes between them and their ancestors are very minor but serve them well in the mountains of Zone L which they call home.
The most drastic change is their reduction of size and slower metabolic rates, as being more active or being larger means they need more energy to run those which then demands for them to consume more food which is not abundant in the mountains. Even with their advanced digestive tracts complete with fermenting chambers, they still needed to become smaller and less active to conserve energy. But aside from these minor changers they actually are well adapted to living in the mountains due to their ancestral traits. Their dense coat of hairs once used in their earliest ancestors to survive the frozen tundras of the south keep the chilling winds at bay and their behavioral adaptations to burrowing and going into torpor also assist with maintaining heat while using less energy.
The Mountain Roombas gather up in groups of 3-5 and build mounds primarily consisting of dirt and small rocks since dead polyph matter is hard to come by. These mounds have a W shaped burrow entrance with a ventilation hole on the ceiling along with a second chamber that goes down where individuals expel waste in the form of feces. Once the time to breed comes around, the group will gather together bits of food from Humilipropogandos incolamontis alongside half of a shed exoskeleton before each laying their 5-10 eggs (the more limited resources means they can't produce as many eggs as their ancestors) on it before covering it over with the other half of the exoskeleton shed. Because of the tough conditions and the fact adults occasionally awaken from their slumber to feed on some only half of the eggs typically survive to hatching. Once the surviving eggs do hatch, the young are about an inch long and take two years to molt once. They do reach sexual maturity than at a quicker pace than their ancestors, being able to breed at around 15 centimeters long.