[1] Univ Nacl Tucuman, CONICET, Fdn Miguel Lillo, Inst Herpetol, RA-4000 San Miguel De Tucuman, Argentina
[2] Univ Nacl Tucuman, Fac Ciencias Nat, Catedra Reserva Expt Horco Molle, RA-4000 San Miguel De Tucuman, Argentina
[3] Univ Nacl Tucuman, Inst Miguel Lillo, RA-4000 San Miguel De Tucuman, Argentina
[4] Univ Nacl Salta, CONICET, Fac Ciencias Nat, Catedra Anat Comparada, Salta, Argentina