ACHE and cyst: To our knowledge our data represent the first definitive measurements of AChE activity from larvae of T. crassiceps. The amount of AChE activity we report in T. crassiceps whole cyst homogenate is similar to that previously reported for the larval homogenate of T. pisiformis (T. crassiceps whole cyst homogenate median activity = 31.69 nmol min-1 mg-1, T. pisiformis homogenate mean activity = 24.8 nmol min-1 mg-1) [13].