[1] The National Center for Biotechnology Information does not indicate that any phylogenetic analysis has been published on Spiracanthus that would confirm its position as a unique genus in the family Arhythmacanthidae.

[citation needed] The distribution of Spiracanthus bovichthys is determined by that of its hosts, which are found in the central south coast of Chile.

The most suitable host is Bovichthys chilensis which was the only fish found infested with adult females.

Other hosts include Auchenionchus variolosus, Calliclinus genigutattus, Sindoscopus australis, Myxodes cristatus, and Gobiesox marmoratus.

[1] There are no reported cases of S. bovichthys infesting humans in the English language medical literature.