Silacayoapan Mixtec
Silacayoapan is one of the more extensive Mixtec languages. It is spoken by 150,000 people in Puebla and across the border in Guerrero, as well as by emigrants to the United States. Dialects. Egland & Bartholomew found six dialects (with > ≈80% internal intelligibility) which had about 70% mutual intelligibility with each other: "Ethnologue" counts (Santa María) Yucunicoco Mixtec with Juxtlahuaca Mixtec. However, Egland & Bartholomew found it to have only 50% intelligible with Juxtlahuaca. Comprehension of Mixtepec is 85%, but in the other direction only 45%.