Opiona

Opiona is a genus of millipedes in the family Caseyidae. There are about 16 described species in Opiona.

Species
These 16 species belong to the genus Opiona:


 * Opiona berryessae Gardner & Shelley, 1989
 * Opiona bifurcata Gardner & Shelley, 1989
 * Opiona casualis Gardner & Shelley, 1989
 * Opiona columbiana Chamberlin, 1951
 * Opiona communis Gardner & Shelley, 1989
 * Opiona confusa Gardner & Shelley, 1989
 * Opiona distincta Gardner & Shelley, 1989
 * Opiona exigua Gardner & Shelley, 1989
 * Opiona facetia Gardner & Shelley, 1989
 * Opiona fisheri Gardner & Shelley, 1989
 * Opiona goedeni Gardner & Shelley, 1989
 * Opiona gonopods
 * Opiona graeningi
 * Opiona hatchi Causey, 1954
 * Opiona scytonotoides Gardner & Shelley, 1989
 * Opiona siliquae Causey, 1963