Fairly tall and leggy, Marsh Striders are well-adapted to the murky waters of Cetus. They're usually coated in a fairly thick, rubbery skin with not a trace of fur. The entirety of their hide is dark to blend in with the swamp's dreary backdrop; though when frightened, their bioluminescent markings flash more brightly across their bodies to alert the rest of the herd as they flee through the bogs. Usually, Marsh Striders possess four eyes (which seem to be entirely pupils) and large, rabbit-like ears. It's difficult to sneak up on one, and even more difficult to catch one on foot without the aid of magic or specialized hunting tactics.

Not quite as leggy as their cousins in Cetus, Jungle Deer are fairly well-built with strong limbs and a barrel-shaped body. The majority of individuals have a short-furred hide in a variety of colors. They can range from earthy browns and greens to brighter blues and yellows. A number of Jungle Deer also possess brindle-like patterns and stripes to aid in camouflage. Their sense of smell is extremely precise and it's not uncommon for them to have three or more eyes. They aren't the quickest of the subspecies, but evade ambush predators with their strong stamina and incredible agility in Eridanus's undergrowth. It's easy to lose one as it makes a hairpin-turn into the brush.

One of the larger and more brutish of the subspecies, Tunnel Runners are hairless, scrappy and almost skeletal in appearance. Their heads are long, slender, and seem to resemble a skull. Beady-black eyes populate the face, often in at least two pairs. They tend to have muted coloration, sometimes with glowing markings and banding. Males develop sharp, single-pointed antlers for competing for mates, while females tend to grow tusks for defending their young. Tunnel Runners do not seem to discriminate between what they do and do not eat. They can be seen crowding (and fighting) around plants or carcasses. Some have even been observed to exhibit cannibalistic tendencies, feeding on their own dead.

Small and goat-like, Woolly Deer thrive in the colder biomes of the caves. Stockily-built, Woolly Deer always develop either shaggy fur coats or thick wool within their first cycle. They have boxy faces with floppy, rounded ears. All individuals, regardless of sex, grow blunt antlers used for protecting their young. Woolly Deer seem to be prefer the snowier areas, snuffling around for buried mosses and grasses to eat. Their choice of escape routes are often slippery paths littered with patches of ice and slush, over which they never seem to stumble. Young Woolly Deer can often be seen skating around as practice and for play.

The Spitting Bug is a spider, despite its name, with eight long legs and a furry body. This body is either white or black, and it bears glowing red markings. The back of its abdomen sports a pseudo-mouth that allows it to spit venom with deadly accuracy. This venom can, after very brief absorption through the skin, paralyze smaller prey (usually Cave Mice) and cause skin rashes or irritation when used against larger threats. Though this spider will usually avoid confrontation with larger creatures, it will defend itself if closely-approached or cornered. One additional danger it poses is the effect the venom has on eyes: if it gets into a creature’s eyes, it can cause temporary (in the case of a couple drops) or permanent (if a full venom stream) blindness.

At first glance this beetle might seem unassuming, what with its simple black body. Its glowing orange spots provide a warning, however, of its toxicity: if ingested it will cause violent seizures, foaming at the mouth, necrosis of the organs, and eventual death in even the largest Gembound. Even just touching its slick shell is enough to cause numbness. They generally stick to dark, close spaces such as holes and gaps beneath rocks, avoiding predators where they can, and will usually flee from contact. Otherwise they wander, feeding on foliage or dead vegetation. Their larvae are small, black, hairless worms with likewise glowing orange spots.