Gyrinicola batrachiensis are nematode parasites that are members of the Oxyurida order. Members of this order are also known as pinworms. These organisms are nematodes that feed on micro-particles in the gut of vertebrates and invertebrates. Oxyurida is further separated into two superfamilies: Oxyuroidea and Thelastomatoidea, which are parasites of vertebrates and invertebrates respectively. Oxyuroidea is composed on three families: Pharyngodonidae; parasites of herbivorous vertebrates, and Oxyuridae and Heteroxynematidae; parasites of mammals and some birds.