Grunkin & Grunkin Riders
Monsterologists only recently discovered this new monster species, so recently they've not yet named it!
They have discovered that they are more aggressive than the neighboring Hagglings, also unlike Haggling society, they do not appear to have positions of authority. Instead they are highly independent and prefer loose familial affiliations. Closely bonded to their mounts, they rely on them for nearly everything. So attached to them are they that they decorate them with precious gems, finely tooled chains, decorative saddles, pearls, and anything they think their mount will find beautiful.
Like their parents, baby Grunkin are adorned with pearls and chains. As they grow precious stones and crystals are added until they are ready for the saddle and the bonding ceremony that ties them to their rider.