Cuticle with a lace-like pattern; numerous "perforations" evenly but irregularly distributed on the inner layer. Young cysts with a thick subcrystalline layer. Cyst cone ambifenestrate: fenestrae rather obscurely demarcated, 45-55 µ long and 35-45 u wide; vulval slit 50-52 u long, as long as vulval bridge; underbridge strongly developed with finger-like projections: length = 100-150 µ; width = 50-70 µ; depth = 22-28 u (Mulvey, 1972); few peripheral bullae.