Borocarb of the crendulate family, a family of large parasitic organisms who expel one of the most noxious wastes known in the Xollum-Xolrut System. Crods are technically considered symbiotic only because they attach themselves to the feet of bipedal borocarbs, providing padding upon which to travel across strateaus covered in sharp ceramic-like shards. In many native Impendian cultures, attachment to a crod is synonymous with banishment into the wilderness.