I found it! \o/
Curtesy of googoogjoob (he wrote it all):
googoogjoob's quasi-scientific vegrological survey
I have made a quasi-scientific thing about the (as I see it) three distinct types/species/races of Knytts. It is called a "vegrological" survey because "vegro" is a very rough translation into Latin of "Knytt". And because I needed something Latin-sounding to replace the "anthro-" in "anthropological". Anyway, here it is, with illustrations.*
*I just made all of this up. It is not canonical in any way. If your interpretation of Knytts is different, well, then, keep it.
A quasi-scientific vegrological study of Knytts:
Harara Mountain Knytts: Tall, bulky. Young are carried in pouches on back for a time. Live in family groupings, in houses carved into the walls of valleys in the mountains, or in small, primitive cottages built of rock from the mountain. Some have tails; some do not. Lose tails when they reach maturity. Move slowly compared to other Knytts, though able climbers from youth. All those beyond childhood wear thick clothing.
Juni-type Knytts: Short; average height about the same as shorter mountain Knytts. Live in many different environments; some in villages, some in the wilderness. Young are more or less the same size as very young mountain Knytts. Apparently grow slowly; little size difference between infants and children. Though on average smaller than mountain Knytts, more capable of athletic feats in maturity. As with humans, different levels of technological advancement in different geographical areas; some live in fairly primitive cottages, while some live in small semi-modern houses. Mingle, to a degree, with Nano-type Knytts. More variety in clothing.
Nano-type Knytts: Tall as the mountain Knytts, but thinner on average. Capable of some athletic feats, more or less on par with the mountain Knytts; they are, however, capable of faster movement. The most technologically advanced Knytts. They have large vehicles, paved roads, electric lighting, and sophisticated locking mechanisms. Live, like the Juni-types, in a variety of environments- they have cities, houses, and mountain-style carved-out houses. Also like the Juni-types, they wear a variety of clothing. A few seem to live with or near the Juni-types.
Another installment! This time, disks, complete with bad Latin names.
Latus Orbis: Relatively harmless creatures. The male is flattened and purple, while the female is yellow with upturned "wings" at its sides.
Puteulanus Surculus: Blue disks. The male is bulkier and has an orange head-orb, while the female is smaller and has a light blue head-orb. Both are capable of emitting dangerously hot spheres from their head-orbs when in danger. The female's spheres are emitted in a regular pattern; the male's are emitted at random.
Brevis Surculus: The male is grey with reddish legs, and has two crests along its sides, along with a red head-orb much like those of the Puteulanus. The female is green and has antennae. The male is capable of emitting toxic spheres of liquid from its head-orb when threatened.
Brevis Orbis: Very small, purple disks. The male has deadly spines.
Campester Cuspis: Red disks. The male has larger eyes than the female, and poisoned spikes on its back.
Ingredior Clausus: Little cubes with legs that inhabit a crystal cave. Multiple colors exist, but the colors are independent of gender, age, or any other visible factor.
Magnus Penna: A very large bird with an equally large beak. Lives in dry, hot areas, and feeds on cacti.
Congeries Virus: Large hemispheres of jelly-like substance. They inhabit cold, dank areas and move more or less at random, feeding on moss from the ground. They have no real organs and are very posionous, much like jellyfish.
Cuspis Repo: An insect-like creature that moves by rotating the spines which cover its body. Inhabits lightly forested areas. It has no sensory organs other than its spines, and feeds on fallen leaves.
Virga Etiam: A large insect with long legs reminiscent of sticks. Feeds on smaller insects that live on and in trees.
Volvo Latex: Small, mobile round creatures. They inhabit tiny, crude houses they build out of clay. Females have legs; males do not. Therefore, males move by sloshing around, while females walk. Volvo Latex lives near sources of great warmth, eg lava, from which they derive nourishment.
Colui Varese: A varied species of insects. They vary greatly in color, size, and whether or not they have wings. All have legs, and those without wings live in burrows of their own making.
Minimus Penna: Very small birds which live in hanging houses of their own construction. Inhabit wet, dark, warm areas.
Navi Gemma: Small, diamond-shaped flying arthropods light enough to stand on clouds, which they do often. It is on these clouds that they build their homes, which are very much alike in shape to themselves.
Ieiunium Gorf: Large, green sedentary mammals. They subsist on the leaves of a certain type of tree which only grows in a small area. They are known for their strength, but are harmless if let alone.
And then there's loads more about other creatures, but you wanted to know about knytts, right? I can copy more later if anyone wants that.