Rodriguesophis iglesiasi (Gomes, 1915)

(Figs. 18.3 and 31.1)

Recorded in sparse localities in the states of Piauí and Bahia, including the São Francisco River dunes, and Cerrado-Caatinga contact areas. All records are in low altitudes (less than 500 m elevation). It is also recorded in the northeastern portion of the Cerrado region (Nogueira et al. 2010, 2011), close to the Caatinga, mostly in areas covered by sparse savannas on sandy soils (Recoder et al. 2011), similar to sandy areas inside the Caatinga. It has fossorial and psammophylous habits, is diurnal and nocturnal, and feeds on lizards (Rodrigues 1993).