Behavior of Herichthys minckleyi in Cuatro Ciénegas, Mexico, recorded in Escobedo on 5 June 2001, morning pink tags indicate papilliform pharyngeal ja Show moreBehavior of Herichthys minckleyi in Cuatro Ciénegas, Mexico, recorded in Escobedo on 5 June 2001, morning pink tags indicate papilliform pharyngeal jaws; orange tags indicate molariform pharyngeal jaws. Show less