New data concerning developmental anomalies observed among species of the family Bothriuridae (Scorpiones) are presented. Tergal malformations in Bothriurus coriaceus, Brachistosternus roigalsinai and Bothriurus noa are described and illustrated. Two new cases of intersexuality in scorpions, in specimens of Brachistosternus pentheri and Bothriurus araguayae, are reported and discussed.