Skiffia is a genus of goodeid fish that contains four species, endemic to the Mesa Central area of Mexico. They typically have a limited tolerance to environmental degradation, and so are susceptible to anthropogenic disturbance. The exception to this is Skiffia bilineata, which is comparatively more tolerant to eutrophication, turbidity and seasonal changes in environmental conditions. All four Skiffia species face some conservation threat and have suffered local extinctions in more than 50% of areas studied where they were previously known to have existed. Skiffia lermae and Skiffia bilineata are the most widely distributed of the genus, found over the states of Michoacán, Jalisco and Guanajuato. Skiffia multipunctata has a restricted distribution in Michoacán and Skiffia francesae has b